AP126A - Fungicides. - Google Patents

Fungicides. Download PDF

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Publication number
AP126A
AP126A APAP/P/1990/000162A AP9000162A AP126A AP 126 A AP126 A AP 126A AP 9000162 A AP9000162 A AP 9000162A AP 126 A AP126 A AP 126A
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ARIPO
Prior art keywords
cyano
compound
alkyl
halogen
compounds
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APAP/P/1990/000162A
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AP9000162A0 (en
Inventor
John Martin Clough
Christopher Richard Ayles Godfrey
Ian Thomas Streeting
Rex Cheetham
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Zeneca Ltd
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52—Two oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

Compounds having the formula

Description

Thia invention relates to derivatives of propenoic acid useful as fungicides, to processes for preparing them, to fungicidal compositions containing them, and to methods of using them to combat fungi, especially fungal infections of plants.
A range of pesticidal alkyl 2(substituted)pyridinyl- and pyrimidinyloxyphenyl-3alkoxypropenoates is described in EP-A-0242081.
According to the present invention there are provided pyrimidines having the formula (I)s
in which any two of K, L and M are nitrogen and the other is CE; X and Yare independently hydrogen, halogen, <^.4 alkyl, C3_6 cycloalkyl, C2_4 alkenyl, c2-4 aifcyny1» c2-4 alkynyloxy, phenyl, benzyloxy, cyano, isocyano, isothiocyanato, nitro, NR^2,
NR1OR2, n3, NHCOR1, NRJ-COjR2, NHCONR1R2, N=CHNR1R2, NHSOjR1, OR1, OCOR1, OSO2R1, SR1, SOR1, SO2R1,
SOjOR1, SO2NR1R2, COR1, CR1=NOR2, CHR1CO2r2, COjR1, C0NR1R2, CSNR1R2, CH3O2C.C:CH.OCH3, 1-(imidazol-1yl)vinyl, a 5-membered heterocyclic ring containing one, two or three nitrogen heteroatoms, or a 5- or 6membered heterocyclic ring containing one or two oxygen or sulphur heteroatoms, optionally a nitrogen heteroatom and optionally one or two oxo or thioxo substituents; or X and Y, when ortho to one another, join to form a 5- or 6-membered aliphatic or aromatic ring optionally containing one or two oxygen, sulphur or nitrogen-atoms or one, two or three nitrogen atoms;
, BAD ORIGINAL
AP 0 0 0 1 2 6
A, B, D, E, G, U and V are independently hydrogen, halogen (especially fluorine and chlorine), C1-4 alkyl (especially methyl), C|_4 alkoxy (especially methoxy), cyano, nitro or trifluoromethyl; and R1 and R^ are independently hydrogen, C3_4 alkyl, C2-.4 alkenyl or phenyl; the aliphatic moieties of any of the foregoing being optionally substituted with one or more of halogen, cyano, OR1, SR1, NR1r2, SiR13 or OCOR1 and the phenyl moieties of any of the foregoing being optionally substituted with one or more of halogen, C^_4 alkyl,
Ci_4 alkoxy, nitro or cyano.
Because of the unsymmetrically substituted double bond of the propenoate group, the compounds of the invention may be obtained in the form of mixtures of (E) and (Z) geometric isomers. However, these mixtures can be separated into individual isomers, and this invention embraces such isomers and mixtures thereof in all proportions including those which consist substantially of the (Z)-isomer and those which consist substantially of the (E)-isomer.
The (E)-isomer, in which the groups -CO2CH3 and -OCH3 are on opposite sides of the olefinic bond of the propenoate group, are the more fungicidally active and form a preferred embodiment of the invention.
Alkyl groups contain from 1 to 4 carbon atoms and may be in the form of straight or branched chains. Examples are methyl, ethyl, iso-propyl, nbutyl and t-butyl. Cycloalkyl groups contain from 3 to 6 carbon atoms and include cyclopropyl and cyclobexyl.
Alkenyl and alkynyl groups contain from 2 to 4 carbon atoms and may be in the form of straight or branched chains. Examples are ethenyl, allyl, methylallyl and propargyl.
Halogen is typically fluorine, chlorine or bromine.
Substituted aliphatic moieties include, in particular, halo(Ci_4Jalkyl, halo(Cj_4)alkoxy, halo(cl-4)alkylthi°, CHjjOR1, CHjSR1 and CH2NR1R2, wherein r! and R2 are H, C^_4 alkyl or phenyl.
Typical optional substituents of phenyl moieties are fluorine, chlorine, methyl, methoxy, nitro and cyano.
The ring
in formula (I) is a pyrimidine ring which may be joined to the phenoxy groups by any two of its ring carbon atoms adjacent to a ring nitrogen atom.
Of particular interest are those compounds of formula (I) in which K and L are both nitrogen and M is CH. Typically, one or both of X and Y are hydrogen. When one of X and Y is not hydrogen it is preferably attached to the 2-position of the phenyl ring.
Thus, in one aspect, the invention provides compounds of formula (I) in which K, L and M have the meanings previously given; X, which is preferably attached to the 2-position of the phenyl ring, is hydrogen, halogen (e.g. fluorine, chlorine or bromine), C^_4 alkyl (e.g. methyl or ethyl), alkyl (especially methyl) substituted with halogen (e.g. fluorine, chlorine or bromine), hydroxy, cyano, cl_4 alkoxy (e.g. methoxy) or 0^.4 alkanoyloxy (e.g. acetoxy), C2-4 alkenyl (e.g. ethenyl, allyl or methylallyl), C2_4 alkynyl (e.g. ethynyl or propargyl), C2_4 alkenyloxy (e.g. allyloxy), C2_4
AP 0 0 0 1 2 6
BAD ORIGINAL A alkynyloxy (e.g. propargyloxy), phenyl, benzyl, cyano, isocyano, isothiocyanato, nitro, amino, monoor di(C|_4)alkylamino (e.g. methylamino or dimethylamino), formylamino, C^_4 alkanoylamino (e.g. acetamido), benzylamino, ureido, phenylureido, C|_4 alkylsulphonylamino (e.g. mesylamino), phenylsulphonylamino, hydroxy, C1-4 alkoxy (e.g. methoxy or ethoxy), phenoxy, C|_4 alkanoyloxy (e.g. acetoxy), C1-4 alkylsulphonyloxy (e.g. mesyloxy), phenylsulphonyloxy, C^_4 alkylthio (e.g. methylthio), Ci_4 alkylsulphinyl (e.g. methylsulphinyl), C^_4 alkylsulphonyl (e.g. mesyl and n-butylsulphonyl), formyl, C^_4 alkanoyl (e.g. acetyl), benzoyl, hydroxyimino(C], _4)alkyl (e.g. hydroxy iminomethyl),
C1-4 alkoxyimino(C1_4)alkyl (e.g.
methoxyiminomethyl), carbamoyl, C^_4 alkylcarbamoyl (e.g. methylcarbamoyl), thiocarbamoyl or Cj_4 alkylthiocarbamoyl (e.g. methylthiocarbamoyl), the phenyl ring of any of the foregoing being optionally substituted with halogen (e.g. fluorine or chlorine), C1-4 alkyl (e.g. methyl), C^_4 alkoxy (e.g. methoxy), nitro or cyano; and Y· is halogen (e.g. fluorine or chlorine), C^_4 alkyl (e.g. methyl), C1-4 alkoxy (e.g. methoxy), nitro, cyano or preferably, hydrogen, or X and Y, when ortho to one another, together form methylenedioxy, or together with the phenyl ring to which they are attached form a naphthalene, quinoline, benzimidazole or benzothienyl ring.
In another aspect the invention provides compounds of the formula (1.1);
Y
choch3 (1.1) in which X is hydrogen, halogen (especially chlorine), alkyl (especially methyl), alkoxy (especially methoxy), trifluoromethyl, cyano, thiocarbamoyl or nitro, and Y is hydrogen or fluoro.
The invention is illustrated by the compounds listed in Tables I to III which follow. Throughout these Tables the methyl 3-methoxypropenoate group has the (E)-configuration and the substituents E, G, U and V are all hydrogen.
AP 0 0 0 1 2 6
BAD ORIGINAL
TABLE I
Compound No. X Y Melting point (*C) Olefinic*
1 H H glass 7.46
2 2-F H gum 7.47
3 3-F H gum 7.47
4 4-F H 87-9 7.46
5 2-Cl H glass 7.38
6 3-C1 H
7 4-C1 H
8 2-Br H glass 7.42
9 2-Cyano H 118-119 7.50
10 3-Cyano H gum 7.49
11 4-Cyano H gum 7.49
12 2-Isocyano H
13 2-NO2 H 120-121 7.52
14 3-NO2 H gum 7.49
15 4-NOj H gum 7.48
16 2-NH2 H gum 7.46
TABLE I Continued
Compound No. X Y Melting point CC) Olefinic*
17 3-NH(CH3) H
18 2-N(CH3)2 H
19 2-NH.CHO H
20 2-NH.C0CH3 H
21 3-NH.COC6H5 H
22 2-NH.CONH2 H
23 3-NH.CONH(C2H5) H
24 2-NH.SO2CH3 H
25 3-NH.SO2C6H5 H
26 2-OH H 159-161 7.45
27 3-OH H
28 4-OH H
29 2-OCH3 , H gum 7.49
30 3-OCH3 H gum 7.47
31 4-OCH3 H 88-90 7.45
32 2-OC2H5 H glass 7.46
33 3-(2-F-C6H40) H
34 2-OCOCH3 H gum 7.47
35 2-OSO2CH3 H foam 7.47
36 3-{4-CH3-C6E4SO2O) H
37 2-SCN H
38 3-SCN H
39 4-SCN H
40 2-SCH3 H gum 7.48
AP 0 0 0 1 2 6 bad original
TABLE I Continued
Compound No. X Y Melting point (*C) Olefinic*
41 3-SCH3 H
42 4-SCH3 H
43 2-S(O)CH3 H 135-6 7.48
44 2-SO2CH3 H 61-4 7.49
45 4-SO2(CH2)3CH3 H
46 2-CH0 H foam 7.50
47 3-CHO H
48 4-CHO H
49 2-COCH3 H 99-101 7.42
50 3-COC6H5 H
51 2-(E)-CH:NOH H 146-7 7.45
52 3-(E)-CH:NOH H
53 4-(E)-CH:NOH H
54 2-(E)-CH:NOCH3 H
55 2-(E)-C(CH3):NOH H
56 2-CONH2 H
57 3-CONH(CH3) H
58 4-CON(CH3)2 H
59 2-CSNH2 H 131-3 7.49
60 2-CSNH(CH3) H
61 2-CH3 H gum 7.48
62 3-CH3 H 92-5 7.45
63 4-CH3 H gum 7.46
64 2-C2 h5 H 60-2 7.47
65 2-CH2F H
66 2-CH2Br H
TABLE I Continued
Compound No. X Y Melting point CC) Olefinic*
67 2-CH2Cl H
68 2-CH2CN H
69 2-CH2OH H
70 2-CH2OCH3 H
71 2-CH2OCOCH3 H
72 3-CH2CN H
. 73 4-CH2OH H
74 3-CH2OCH3 H
75 2-CHsCH2 H
76 2-CH2CHsCH2 H gum 7.47
77 2-C:CH H 66-8 7.46
78 2-CH2C:CH H
79 3-CH2C(CHj)sCH2 H
80 2-OCH2CH:CH2 H glass 7.47
81 2-OCH2C:CH H gum 7.47
82 2-C6H5 H 55 7.40
83 3-C6 hs H
84 4-C6H5 H
85 2-C6H5O H
86 3_C6H5° H
87 4-C6H5° H
88 2-(4-Cl-C6H4O) H
89 2-C6H5CH2O H
90 2-Cyano 4-Cl
91 2-NO2 4-F
ΑΡ0 0 0126
BAD ORIG|NAL
TABLE I Continued
Compound No. X Y delting point (*C) - Olefinic*
92 2-Cl 4-Cl
93 2-OCH3 3-OCH3
94 2-Cyano 5-Cl
95 2-Cyano 6-Cyano
96 2-F 5-Cl
97 3-OCH3 5-OCH3
98 3-Cyano 4-F
99 2-NO2 3-OCH3
100 3-OCH3 5-Cyano
101 2-CO2CH3 H glass 7. 50
102 2-1 H glass 7.48
103 2-CF3 H 99-101 7.48
104 2-i-C3H7 H 63-5 7.47
105 2-i-C3H?O H glass 7.47
106 2-F 6-F 87-8 7.49
107 2-F 4-F 92-4 7.48
108 2-F 3-F gum 7.48
109 2-n-C3H7O H gum 7.46
110 2-n-C^HgO H gum 7.47
111 2-CH(OH)CH3 H 50-3 7.46
112 2-t-C4H9 H gum 7.47
113 2-s-C4H9 H gum 7.47
114 2-n-C3H7 H . gum 7.47
TABLE I Continued
Compound No. X Y Melting point CC) Olefinic*
115 2-(E/Z)-CH=CH(CH3) H glass 7.461
116 2-Cyano 4-OCH 3 gum 7.50
117 2-Cyano 5-OCH 3 oil 7.50
118 2-Cyano 4-C1 | 78-82 7.50
119 2-Cyano 5-N(C 2h5^2 oil 7.50
120 2-CONH2 H 138-141 7.46
121 2-C:CSi(CH3)3 H gum 7.46
122 2-F 5-F 100-101 7.48
123 2-(E)- ch3o2c.csch.och3 H 130-131 7.45
124 3-F 5-F 68-70 7.47
125 2-NHOH H
126 2-CH2OCH3 H
127 2-CH2CN H
128 2-N3 H
129 2-Cyano 6-F
130 2-NO2 6-F
131 2-CSNH2 6-F
132 2-Cyano 3-F
133 2-Cyano 5-F
134 2-Cyano 3-OCH 3
135 2-Cyano 6-OCH L 3
AP 0 0 0 1 2 6 |pn original
TABLE I Continued
Compound No. X Y Melting point (*C) Olefinic
136 2-NO2 4-OCH3
137 2-NO2 5-OCH3
138 2-NO2 6-OCH3
139 2-CSNH2 3-OCH3
140 2-CSNH2 4-OCH3
141 2-CSNH2 5-OCH3
142 2-CSNH2 6-OCH3
143 2-Cyano 3-Cyano
144 2-F 3-Cyano
144 2-OCH3 3-Cyano
145 3-Cyano 6-F
146 0 H
147 2Ά V H
0
TABLE I Continued
Compound No. X Y Melting point CC) Olefinic*
148 2- Λ NZ S VJ H
149 1 1 H
KA 0 0
150 2-Cyano 4-Br
151 2-Cyano 6-Br
152 2-Cyano 4-NO2
153 2-Cyano. 6-NOj
154 2-Cyano 6-OC2H5
155 2-Cyano 4-CO2CH3
156 2-Cyano 6-CO2C 2»5
157 2-Cyano 6-CH3
158 2-Cyano 5-CH2C 6H5
159 2-Cyano 4-OCF3
160 2-Cyano 4-Cyan o
ΑΡ0 0 0 1 2 6
OCH-
TABLE I Continued
Compound No. Ar Melting point CC) Olefinic*
167 Pentafluorophenyl
168 2,4,6-Tri-F-C6H2
169 2,3,5,6-Tetra-F-C6H
170 2,3,6-Tri-F-C6H2
171 2,3-Di-cyano-6-F-CgH2
172 2,6-Di-F-3-CH3O-C6H2
173 2,6-Di-F-4-CH3O-C6H2
174 2,6-Di-F-3-NO2-C6H2
175 2,6-Di-F-4-NO2-C6H2
176 2,6-Di-F-3,5-di-CH30-C( >H
177 4,6-Di-3r-2-cyano-CgH2
178 3-Cyano-2,6-di-F-CgH2
179 6-Br-2-cyano-4-CH30-CgH2
180 6-Br-4-Cl-2-cyano-CgH2
181 6-Br-2-cyano-4-NO2-CgH. >
182 3-Br-2-cyano-6-CH3O-CgH2
183 3, 5-Di-Cl-2-cyano-CgH2
184 4, 6-Di-Cl-2-cyano-CgH2
185 3-Br-2-cyano-4-CH30-Cgt !2
186 4-Br-2-cyano-6-N02-CθΗ<
187 4-Br-2-cyano-6-CH30-CgH2
188 2-Cyano-4-I-6-CH30-CgH2
189 2-Cyano-6-CH30-4-N02-C6H2
190 2-Cyano-4,6-di-NO2-CgH,
AP 0 0 0 1 2 6
TABLE I Continued
Compound No. Ar Melting point CC) Olefinic*
191 2-Cyano-4-CH3-6-N02-C6H2
192 2-Cyano-4-CH3o-6-N02-C6H2
193 2-Cyano-5,6-di-CH3O-C6H2
194 2-Cyano-5,6-di-CH3O-3-CH3-C6H
195 3,4-Di-Br-2-cyano-6-CH30-CgH
196 3-Br-2-cyano-6-CH30-4-NC>2 -CgH
197 2-Cyano-6-CH3CH20-4-N02-C6H2
198
CN
199
1
CN
* Chemical shift of singlet from olefinic proton on beta-methoxypropenoate group (ppm from tetramethylsilane). Solvent: CDC13 unless otherwise stated.
The ratio of the (E)- and (Z)-isomers of the prop-l-enyl group of compound No. 115 is either 2:1 or 1:2.
Table II comprises 199 compounds of the general structure above with all the values of X and Y listed in Table I. That is, compounds numbers 1 to 199 of Table II are the same as those of Table I except that the pyrimidine ring is 4,6-disubstituted in Table I and 2,4-disubstituted as shown in Table II.
APO 00 1 26
Compound No x Y Melting Point CC) Olefinic*
1 H H 114-115 7.46
123 : i-(E)-CH3O2C.C:CH.OCH3 H 60-70 7.44 and 7.47
Chemical shift of singlet from olefinic proton on beta-methoxypropenoate group (ppm from tetramethylsilane). Solvent: CDC13 unless otherwise stated.
TABLE III
Table III comprises 199 compounds of the general structure above with all the values of X and Y listed in Table I. That is, compounds numbers 1 to 199 of Table III are the same as those of Table I except that the pyrimidine ring is 4,6-disubstituted in Table I and 2,4-disubstituted as shown in Table III.
Compound No X Y Melting Point CC) Olefinic*
1 H H 96-97 7.42
9 2-Cyano H foam 7.43
* Chemical shift of singlet from olefinic proton on beta-methoxypropenoate group (ppm from tetramethylsilane). Solvent: CDCl^ unless otherwise stated.
TABLE IV : Selected proton NMR data
Table IV shows selected proton NMR data for certain compounds described in Table I (except where otherwise indicated). Chemical shifts are measured in ppm from tetramethylsilane, and deuterochloroform was used as solvent. Unless otherwise stated, spectra were recorded on an instrument operating at 270 MHz. The following abbreviations are used:
s e singlet d * doublet t = triplet m * multiplet q = quartet
dd = br = ppm = double doublet broad = parts per million •
Compound No Proton NMR data
1 3.60 (3H,s); 3.75(3H,s); 6.23(lH,s); 7.10-7.50(9H,m); 7.46(lH,s); 8.43(1H,s)ppm
2 3.60 (3H, s); 3.74 (3H, s); 6.32 (1H, s); 7.15-7.46 (8H, m)? 7.47 (1H, s); 8.40 (1H, s)ppm
ΑΡ0 0 0 1 2 6
BAD
Compound No Proton NMR data
3 3.63 (3H, s); 3.76 (3H, s)? 6.27 (IH, s); 6.86-7.03 (3H, m); 7.16-7.50 (5H, m); 7.47 (1H, s)i 8.43 (IH, s)ppm
5 3.5O(3H,s); 3.61(3H,s); 6.21(lH,s); 7.08-7.43(8H,m); 7.38(lH,s); 8.30 (IH,s)ppm
8 3.54 (3H, s); 3.68 (3H, s) ? 6.23 (1H, s)· 7.06-7.36 (7H, m); 7.42 (IH, s); 7.59 (1H, d); 8.33 (1H, a)ppm
10 3.63 (3H, s); 3.77 (3H, s); 6.33 (lH^ s)i 7.20 (IH, d); 7.25-7.60
(7H, m); 7.49 (IH, s); 8.40 (IH, s) ppm
11 3.62 (3H, s); 3.78 (3H, s); 6.34
(IH, s)j 7.20 (IH, d); 7.25-7.45
(5H, m), 7.49 (IH, s); 7.73 (2H, d); 8.41 (IH, s)ppm
14 3.65 (3H, s)? 3.78 (3H, s); 6.37 (IH, s); 7.08-7.65 (6H, m); 7.49
(IH, s); 8.04 (IH, t); 8.14 (lH,dd); 8.41 (IH, s)ppm
Compound No
Proton NMR data
3.64 (3H, s)· 3.78 (3H, s);
6.39 (1H, s); 7.20 (1H, d);
7.26-7.46 (5H, m); 7.48 (1H, s);
8.32 (2H, d); 8.42 (1H, s)ppnt
3.60 (3H,s); 3.74 (3H,s); 3.74 (2H, br s)y 6.23 (1H, s); 6.77-6.87 (2H, m) ; 6.98-7.12 (2H, m)? 7.24-7.42 (4H, m); 7.46 (1H, s); 8.44 (1H, s)ppm
3.61 (3H, s)t 3.76 (3H, s)? 3.82 (3H, s)j 6.23 (1H, s)? 6.68-6.75 (2H, m); 6.80 (1H, dd); 7.19 (1H, d)y 7.25-7.42 (4H, ra); 7.47 (1H, s); 8.43 (1H, s)ppm
1.23 (3H, t); 3.59 (3H, s); 3.73 (3H, s); 4.02 (2H, q); 6.25 (1H, s); 7.00 (2H, d)? 7.46 (1H, s); 8.39 (1H, s)ppm
2.17 (3H, s); 3.60 (3H, s); 3.75 (3H, s); 6.29 (1H, s); 7.18-7.43 (8H, m); 7.47 (1H, s); 8.41 (1H, s)ppm
3.12 (3H, s); 3.61 (3H, s); 3.74 (3H, s); 6.29 (1H, s); 7.19-7.50 (8H, m)? 7.47 (1H, s); 8.40 (1H, s)ppm
AP 0 0 0 1 2 6
BA&Q^QlNAL
Compound No Proton NMR data
40 3.60 (3H, s); 3.75 (3H, s); 6.28 (1H, s),· 7.09 (1H, dd); 7.20-7.44 (7H, m); 7.48 (1H, s); 8.42 (1H, s) ppm
46 3.63 (3H, s); 3.77 (3H, s); 6.39 (1H, a); 7.20-7.45 (6H, m); 7.50 (1H, s); 7.68 (1H, t); 7.97 (1H, d); 8.39 (1H, s)ppm
61 2.17 (3H, s); 3.60 (3H, s); 3.75 (3H, s); 6.20 (1H, s); 7,00-7.50 (8H, m); 7.48 (lH, s); 8.42 (1H, s)ppm
63 2.37 (3H, e); 3.59 (3H, s)j 3.73 (3H,.s); 6.22 (1H, s); 7.00 (2H, d); 7.14-7.44 (6H, m); 7.46 (1H, s); 8.42 (1H, e)ppm
76 3.28-3.30 (2H, d); 3.60 (3H, s); 3.74 (3H, s); 4.98-5.02 (1H, m); 5.05 (1H, s); 5.81-5.96 (1H, m); 6.21 (1H, s); 7.04-7.08 (1H, m); 7.18-7.42 (7H, m); 7.47 (1H, s); 8.42 (1H, s)ppm.
80 3.59 (3H, s); 3.73 (3H, s); 4.51-4.53 (2H, m); 5.16-5.26 (2H, m); 5.79-5.94 (1H, m); 6.25 (1H, s),- 6.98-7.03 (2H, m); 7.12-7.42 (6H, m); 7.47 (1H, 3); 8.39 (1H, s)ppm
Compound No Proton NMR data
81 101 102 2.48-2.50 (1H, m); 3.60 (3H, s) ? 3.74 (3H, s),· 3.65 (2H, d); 6.24 (1H, s); 7.03-7.43 (8H, m); 7.47 (1H, s); 8.40 (1H, s)ppm 3.62 (3H, s); 3.75 (3H, s); 3.76 (3H, s); 6.33 (1H, s); 7.17-7.45 (6H, m); 7.50 (1H, s) ,· 7.57 (1H, t); 8.03 (1H, d); 8.36 (1H, s)ppm 3.62 (3H, s); 3.76 (3H, s)? 6.31 (1H, s); 7.02 (1H, t): 7.14-7.51 (6H, m); 7.48 (1H, s); 7.88 (1H, d); 8.41 (1H, s)ppm
105 « 1.21 (6H, d); 3.60 (3H, s); 3.74 (3H, s)y 4.44-4.56 (1H, m); 6.23 (1H, s); 6.95-7.02 (2H, m); 7.11-7.49 (6H, m); 7.47 (1H, s)ppm
106 3.62 (3H, s); 3.74 (3H, s)? 6.38 (1H, s); 7.00 (2H, t); 7.15-7.45 (5H, m); 7.49 (1H, s); 8.39 (1H, s)ppm
AP000126 oad original
Compound
No
Proton NMR data
108
109
110
112
113
3.62 (3H, s); 3.74 (3H, s); 6.35
(1H, s); 6.95- 7.43 (7H, m); 7.48
(1H, s); 8.39 (1H, s)ppm
0.80 (3H, t)j 1.56- -1.70 (2H, m)i
3.60 (3H, s); 3.74 (3H, s); 3.90
<2H, t); 6.24 (1H, s) ? 6.98 (2H, d);
7.10- -7.42 (6H, m); 7.46 (1H, s);
8.39 (1H, s) p pm
0.86 (3H, t); 1.18- -1.30 (2H, m);
1.56- -1.64 (2H, m) j 3.60 (3H, s); 3.74
(3H, s)· 3.94 <2H, t) ; 6.25 (1H, s);
7.00 (2H, d); 7.11- -7.43 (6H, m)?
7.47 ’(1H, s); 8.38 (1H, s) ppm
1.34 (9H, s); 3.68 (3H, s); 3.74 (3H
s); 6.24 (1H, s); < >.95- 7.98 (1H, m);
7.17- -7.48 (7H, m) ? 7.47 (1H, s); 8.45
(1H, s) ppm
0.79 (3H, t); 1.16 (3H, d),· 1.49- 1.67
(2H, m); 1.75- 1.88 (1H, m); 3.59 (3H,
s); : 3.74 (3H, s) ; ( >. 19 (1H, s); 7 .00-
7.05 (1H, m); 7.18- -7.46 (7H, m); 7.47
(1H, s); 8.42 (1H, s) p pm
BadoRiG,nal
Compound No Proton NMR data
114 0.91 (3H, t) ? 1.53-1.66 (2H, m); 2.49 (2H, t); 3.59 (3H, s); 3.74 (3H, s)· 6.20 (1H, s); 7.00-7.04 (1H, m); 7.18-7.46 (7H, m) j 7.47 (1H, s); 8.41 (1H, s)ppm
115 For both isomers: 1.76-1.85 (3H, m); 3.58 (3H, s); 3.73 (3H, s); 7.00-7.42 (7H, m); 7.46 (lH,s)y 7.54-7.58 (1H, m)ppm For major isomers 6.18 (2/3H, s)j 6.226.32 (2/3H, m); 6.38 (2/3H, br s); 8.42 (2/3H, s)ppm. For minor isomers 5.705.83 (1/3H, m); 6.15 (1/3H, s)y 6.44 (1/3H, br s); 8.39 (1/3H, s)ppm
116 3.63 (3H, s); 3.75 (3H, s); 3.85 • (3H, s); 6.38 (1H, s); 7.15-7.45 (7H, m); 7.50 (1H, s); 8.40 (1H, s)ppm
117 3.63 (3H, s); 3.75 (3H, s); 3.86 (3H, s); 6.40 (1H, s); 6.80 (1H, s)y 6.88 (1H, d); 7.2-7.45 (4H, m); 7.50 (1H, s); 7.61 (1H, d); 8.41 (1H, s)ppm
119 1.20 (6H, t); 3.38 (4H, q); 3.63 (3H, s); 3.74 (3H, s); 6.35 (1H, s); 6.40 (1H, d); 6.52 (1H, dd); 7.2-7.46 (5H, m); 7.50 (1H, s); 8.43 (1H, s) ppm
BAD ORIGINAL £
ΑΡ000126
Compound No Proton NMR data
121 0.10 (9H, s); 3.61 <3H, s); 3.74
(3H, β); 6.29 (1H, s)j 7.12- •7.43
(7H, m); 7.46 (1H, s); 7.50- -7. 55
(1H, m); 8.41 (1H, s)ppm
9 (Table III) 3.57 (3H, s); 3.68 (3H, s); 6.75
(1H, d); 7.10- 7.40 (6H, m); 7.43
(1H, s); 7.59 (1H, t); 7.68 (1H, d),·
8.40 (1H, d)pp >m
bad qB\G^V
The compounds of the invention of formula (I) [equivalent to (IA) when W is the group CH3O2C.C=CH.OCH3] can be prepared by the steps illustrated in Schemes I and II. Throughout these Schemes the terms X, Y, A, B, D, G, U, V, K, L and M are as defined above; W is CH3O2C.C=CH.OCH3 (or a group that can be transformed into CH3O2C.C=CH.OCH3 using methods previously described in EP-A-0242081); Z1 and Z^, which may be the same or different, are leaving groups (such as halogen or CH3SO2-), Z1 being the leaving group which is more readily displaced if both Z1 and Z^ are present in the same compound or if Z1 and Z^ are both present in different compounds of a coupling reaction; T1 is hydrogen or a metal (such as sodium); and is hydrogen, a metal (such as sodium) or a protecting group (such as benzyl). Each reaction shown in Schemes I and II is performed either in a suitable solvent or without a solvent, and at a suitable temperature.
Thus compounds of the invention of formula [(IA): W is the group CH3O2C.C=CH.OCH3] can be «
prepared by two successive reactions of the Ullmann type, using appropriately functionalised benzene and pyrimidine intermediates. The pathways shown in Schemes I and II illustrate that (i) the order of the steps by which these benzene and pyrimidine units are assembled can be varied; and (ii) the functional groups which react during the Ullmann coupling, namely an oxygen nucleophile and a leaving group on an aromatic ring, may be positioned on either of the substrates at each individual step.
For example, compounds of formula (IA) can be prepared from compounds of formula (II) by treatment with phenols of formula (III), wherein T1 is hydrogen, in the presence of a base (such as potassium carbonate). Alternatively, compounds of
ΑΡ0 0 0 1 2 6
BAD ORIGINAL formula (IA) can be prepared from compounds of formula (II) by treatment with phenolate salts of formula (III), wherein T* is a metal (such as sodium).
Compounds of formula (II) can be prepared by treatment of compounds of formula (IV) with phenols of formula (V), wherein T^ is hydrogen, in the presence of a base (such as potassium carbonate). Alternatively, compounds of formula (II) can be prepared by treatment of compounds of formula (IV) with phenolate salts of formula (V), wherein Tl is a metal (such as sodium).
Similarly, compounds of formula (II) can be prepared by allowing compounds of formula (VI) to react with compounds of formula (VII)j when T1 is hydrogen, the reaction is performed in the presence of a base (such as potassium carbonate).
The preparation of compounds of formula (IA) from intermediates (VIII), (XI) and (XII), as well as the preparation of th,ese intermediates from the monocyclic precursors, is carried out by similar methods.
Modifications to the group W may be made at any appropriate stage in the pathways shown in Schemes I and II. For example, during one or more of the Ullmann couplings, W may be the group CH2CO2R (wherein R is H, CH^ or a metal) to be converted at the last stages of the synthesis into the group CH3O2C.C=CH.OCH3 using, for example, one of the methods described in EP-A-0242081. When 19 a protecting group, it may be removed at any appropriate reaction step.
OB'S®4''
The substituents X, Y, A, B, D, E (one of K, L and M having the value CE, wherein E is as defined above), G,
U and V may also be modified at any appropriate reaction step. For example, if X is NO2 it may be converted via reduction and diazotisation into a halogen, CN or OH group, and this may be carried out on intermediates such as (XI) or (XII) or on the compounds of formula (IA).
Or, for example, if G is a halogen such as chlorine, it may be removed at an appropriate stage of the synthesis (such as at the last stage) to give the corresponding pyrimidine in which G is hydrogen.
The intermediates of formulae (II) and (VIII) may be interconverted using standard methods. The intermediates of formulae (XI) and (XII) are similarly interconvertible. Compounds of formulae (III), (IV), (VI), (IX), (X), (XIII), (XIV), (XV), (XVI) and (XVII) can be prepared by standard methods described in the chemical literature. Compounds of formulae (V) and (VII) can either.be prepared by standard methods described in the chemical literature, or, when W is
CH^C^C.C=CH.OCH^, can be prepared by methods described in EP-A-0242081 and EP-A-0178826 respectively.
ΑΡ0 0 0 1 2 6
BAD ORIGINAL ft
(XIV)
Scheme II
<XV> (XVI) (XIII) (XVII)
APO Ο Ο 12 6
In a further aspect, the invention provides processes as hereindescribed for preparing the compounds of the invention.
The compounds of the invention are active fungicides and may be used to control one or more of the following pathogens:
Pyricularia oryzae on rice.
Puccinia recondite, Puccinia striiformis and other rusts on wheat, Puccinia hordei, Puccinia striiformis and other rusts on barley, and rusts on other hosts e.g. coffee, pears, apples, peanuts, vegetables and ornamental plants. Eryslphe graminis (powdery mildew) on barley and wheat and other powdery mildews on various hosts such as Sphaerotheca macularis on hops, Sphaerotheca fuliginea on cucurbits (e.g. cucumber), Podosphaera leucotricha on apple and Uncinula necator on vines.
Helminthosporlum spp., Rhynchospor ium spp., Septoria spp., Pyrenophora spp., P3eudocercosporella herpotricholdes and Gaeumannomyces graminis on cereals.
Cercospora arachidicola and Cercosporidium personata on peanuts and other Cercospora species on other hosts, for example, sugar beet, bananas, soya beans and rice.
Botrytis cinerea (grey mould) on tomatoes, strawberries, vegetables, vines and other hosts. Alternaria spp. on vegetables (e.g. cucumber), oilseed rape, apples, tomatoes and other hosts.
Venturia inaequalis (scab) on apples.
Plasmopara viticola on vines.
Other downy mildews such as Bremia lactucae on
BAD origin*1- §t lettuce, Peronospora spp. on soybeans, tobacco, onions and other hosts, Pseudoperonospora humuli on hops and Pseudoperonospora cubensis on cucurbits. Phytophthora infestans on potatoes and tomatoes and other Phytophthora spp. on vegetables, strawberries, avocado, pepper, ornamentals, tobacco, cocoa and other hosts.
Thanatephorus cucumerls on rice and other Rhizoctonia species on various hosts such as wheat and barley, vegetables, cotton and turf.
Some of the compounds show a broad range of activities against fungi in vitro. They may also have activity against various post-harvest diseases of fruit (e.g. Penicillium digitatum and italicum and Trichoderma viride on oranges, Gloeosporium musarum on bananas and Botrytis cinerea on grapes).
Further, some of the compounds may be active as seed dressings against pathogens including Fusarium spp., Septoria spp., Tllletia spp., (bunt, a seed-borne disease of wheat), Ustilago spp. and Helminthosporium spp. on cereals, Rhizoctonia solanl on cotton and Pyricularia oryzae on rice.
The compounds may have systemic movement in plants. Moreover, the compounds may be volatile enough to be active in the vapour phase against fungi on the plant. The invention therefore provides a method of combating fungi which comprises applying to a plant, to a seed of a plant or to the locus of the plant or seed a fungicidally effective amount of a compound as hereinbefore defined, or a composition containing the same.
The compounds may be used directly for agricultural
APO 0012 6
BAD ORIGINAL purposes but are more conveniently formulated into compositions using a carrier or diluent. The invention thus provides fungicidal compositions comprising a compound as hereinbefore defined and an acceptable carrier or diluent therefor.
The compounds can be applied in a number of ways.
For example, they can be applied, formulated or unformulated, directly to the foliage of a plant, to seeds or to other medium in which plants are growing or are to be planted, or they can be sprayed on, dusted on or applied as a cream or paste formulation, or they can be applied as a vapour or as slow release granules.
Application can be to any part of the plant including the foliage, stems, branches or roots, or to soil surrounding the roots, or to the seed before it is planted, or to the soil generally, to paddy water or to hydroponic culture systems. The invention compounds may also be injected into plants or sprayed onto vegetation using electrodynamic spraying techniques or other low volume methods.
The term plant as used herein includes seedlings, bushes and trees. Furthermore, the fungicidal method of the invention includes preventative, protectant, prophylactic and eradicant treatments.
The compounds are preferably used for agricultural and horticultural purposes in the form of a composition. The type of composition used in any instance will depend upon the particular purpose envisaged.
The compositions may be in the form of dustable powders or granules comprising the active ingredient (invention compound) and a solid diluent or carrier, for example, fillers such as kaolin, bentonite, kieselguhr, dolomite, calcium carbonate, talc, powdered magnesia, fuller's earth, gypsum, diatomaceous earth and china clay. Such granules can be preformed granules suitable for application to the soil without further treatment. These granules can be made either by impregnating pellets of filler with the active ingredient or by pelleting a mixture of the active ingredient and powdered filler. Compositions for dressing seed may include an agent (for example, a mineral oil) for assisting the adhesion of the composition to the seed; alternatively the active ingredient can be formulated for seed dressing purposes using an organic solvent (for example, N-methylpyrrolidone, propylene glycol or dimethyl formamide). The compositions may also be in the form of wettable powders or water dispersible granules comprising wetting or dispersing agents to facilitate the dispersion in liquids. The powders and granules may also contain fillers and suspending agents.
Emulsifiable concentrates or emulsions may be prepared by dissolving the active ingredient in an organic solvent optionally containing a wetting or emulsifying agent and then adding the mixture to water which may also contain a wetting or emulsifying agent. Suitable organic solvents are aromatic solvents such as alkylbenzenes and alkyl naphthalenes, ketones such as cyclohexanone and methylcyclohexanone, chlorinated hydrocarbons such as chlorobenzene and trichlorethane, and alcohols such as benzyl alcohol, furfuryl alcohol, butanol and glycol ethers.
Suspension concentrates of largely insoluble solids may be prepared by ball or bead milling with a dispersing agent with a suspending agent included to stop the solid settling.
Compositions to be used as sprays may be in the form of aerosols wherein the formulation is held in a container under pressure of a propellant, e.g.
AP 0 0 0 1 2 6 fluorotrichloromethane or dichlorodifluoromethane.
The invention compounds can be mixed in the dry state with a pyrotechnic mixture to form a composition suitable for generating in enclosed spaces a smoke containing the compounds.
Alternatively, the compounds may be used in microencapsulated form. They may also be formulated in biodegradable polymeric formulations to obtain a slow, controlled release of the active substance.
By including suitable additives, for example additives for improving the distribution, adhesive power and resistance to rain on treated surfaces, the different compositions can be better adapted for various utilities.
The invention compounds can be used as mixtures with fertilisers (e.g. nitrogen-, potassium- or phosphoruscontaining fertilisers). Compositions comprising only granules of fertiliser incorporating, for example coated with, the compound are preferred. Such granules suitably contain up to 25% by weight of the compound.
The invention therefore also provides a fertiliser composition comprising a fertiliser and the compound of general formula (I) or a salt or metal complex thereof.
Wettable powders, emulsifiable concentrates and suspension concentrates will normally contain surfactants, e.g. a wetting agent, dispersing agent, emulsifying agent or suspending agent. These agents can be cationic, anionic or non-ionic agents.
Suitable cationic agents are quaternary ammonium compounds, for example, cetyltrimethylammonium bromide. Suitable anionic agents are soaps, salts of aliphatic monoesters of sulphuric acid (for example, sodium lauryl sulphate), and salts of sulphonated aromatic compounds (for example, sodium dodecylbenzenesulphonate, sodium, calcium or ammonium lignosulphonate, butylnaphthalene sulphonate, and a mixture of sodium diisopropyl- and triisopropyl- naphthalene sulphonates).
Suitable non-ionic agents are the condensation products of ethylene oxide with fatty alcohols such as oleyl or cetyl alcohol, or with alkyl phenols such as octyl- or nonylphenol and octylcresol. Other non-ionic agents are the partial esters derived from long chain fatty acids and hexitol anhydrides, the condensation products of the said partial esters with ethylene oxide, and the lecithins. Suitable suspending agents are hydrophilic colloids (for example, polyvinylpyrrolidone and sodium carboxymethylcellulose), and swelling clays such as bentonite or attapulgite.
Compositions for use as aqueous dispersions or emulsions are generally supplied in the form of a concentrate containing a high proportion of the active ingredient, the concentrate being diluted with water before use. These concentrates should preferably be able to withstand storage for prolonged periods and after such storage be capable of dilution with water in order to form aqueous preparations which remain homogeneous for a sufficient time to enable them to be applied by conventional spray equipment. The concentrates may conveniently contain up to 95%, suitably 10-85%, for example 25-60%, by weight of the active ingredient. After dilution to form aqueous preparations, such preparations may contain varying amounts of the active ingredient depending upon the intended purpose, but an aqueous preparation containing 0.0005% or 0.01% to 10% by weight of active ingredient may be used.
AP000126
BAD ORIGINAL &
The compositions of this invention may contain other compounds having biological activity, e.g. compounds having similar or complementary fungicidal activity or which possess plant growth regulating, herbicidal or insecticidal activity.
A fungicidal compound which may be present in the composition of the invention may be one which is capable of combating ear diseases of cereals (e.g. wheat) such as Septoria, Gibberella and Helminthosporium spp., seed and soil-borne diseases and downy and powdery mildews on grapes and powdery mildew and scab on apple, etc. By including another fungicide, the composition can have a broader spectrum of activity than the compound of general formula (I) alone. Further the other fungicide can have a synergistic effect on the fungicidal activity of the compound of general formula (I). Examples of fungicidal compounds which may be included in the composition of the invention are (RS)-laminopropylphosphonic acid, (RS)-4-(4-chlorophenyl)-2phenyl-2-(1H-1,2,4-triazol-l-ylmethyl)butyronitrile, {RS)-4-chloro-N-(cyano(ethoxy)methyl)benzamide, (Z) -Nbut-2-enyloxymethyl-2-chloro-2’,6’-diethylacetanilide, l-(2-cyano-2-methoxyiminoacetyl)-3-ethyl urea, 1C(2RS,4RS?2RS,4RS)-4-bromo-2-(2,4dichlorophenyl)tetrahydrofurfuryl]-lH-l,2,4-triazole, 3(2,4-dichlorophenyl )-2-(1H-1,2,4-triazol-l-yl)quinazolin-4(3H)-one, 3-chloro-4-[4-methyl-2-(1H-1,2,4triazol-1-methyl )-1,3-dioxolan-2-yl]phenyl-4chlorophenyl ether, 4-bromo-2-cyano-N,N-dimethyl-6trifluoromethylbenzimidazole-1-sulphonamide, 4chlorobenzyl N-(2,4-dichlorophenyl )-2-(1H-1,2,4-triazol1-yl)thioacetamidate, 5-ethyl-5,8-dihydro-8-oxo( 1,3)dioxolo(4,5-2)quinoline-7-carboxylic acid, alpha-[N-(339 chioro-2,6-xylyl)-2-methoxyacetamido]-gammabutyrolactone, anilazine, benalaxyl, benomyl, biloxazol, binapacryl, bitertanol, blasticidin S, bupirimate, buthiobate, captafol, captan, carbendazim, carboxin, chlorbenzthiazone, chloroneb, chlorothalonil, chlorozolinate, copper containing compounds such as copper oxychloride, copper sulphate and Bordeaux mixture, cycloheximide, cymoxanil, cyproconazole, cyprofuram, di-2-pyridyl disulphide 1,1'-dioxide, dichlofluanid, dichlone, diclobutrazol, diclomezine, dicloran, dimethamorph, dimethirimol, diniconazole, dinocap, ditalimfos, dithianon, dodemorph, dodine, edifenphos, etaconazole, ethirimol, ethyl (Z)-N-benzylN-([methyl(methylthioethylideneamino-oxycarbonyl)amino]15 thio)-beta-alaninate, etridiazole, fenapanil, fenarimol, fenfuram, fenpiclonil, fenpropidin, fenpropimorph, fentin acetate, fentin hydroxide, flutolanil, flutriafol, fluzilazole, folpet, fosetylaluminium, fuberidazole, furalaxyl, furconazole-cis, guazatine, hexaconazole, hydroxyisoxazole, imazalil, *
iprobenfos, iprodione, isoprothiolane, kasugamycin, mancozeb, maneb, mepronil, metalaxyl, methfuroxam, metsulfovax, myclobutanil, N-(4-methyl-6-prop-lynylpyrimidin-2-ylJaniline, neoasozin, nickel dimethyldithiocarbamate, nitrothal-isopropyl, nuarimol, ofurace, organomercury compounds, oxadixyl, oxycarboxin, pefurazoate, penconazole, pencycuron, phenazin oxide, phthalide, polyoxin D, polyram, probenazole, prochloraz, procymidone, propamocarb, propiconazole, propineb, prothiocarb, pyrazophos, pyrifenox, pyroquilon, pyroxyfur, pyrrolnitrin, quinomethionate, quintozene, streptomycin, sulphur, techlofthalam, tecnazene,
AP000126 tebuconazole, tetraconazole, thiabendazole, thiophanatemethyl, thiram, tolclofos-methy1, triacetate salt of 1,1'-iminodi(octamethylene)diguanidine, triadimefon, triadimenol, triazbutyl, tricyclazole, tridemorph, triforine, validamycin A, vinclozolin and zineb. The compounds of general formula (I) can be mixed with soil, peat or other rooting media for the protection of plants against seed-borne, soil-borne or foliar fungal diseases.
Suitable insecticides which may be incorporated in the composition of the invention include buprofezin, carbaryl, carbofuran, carbosulfan, chlorpyrifos, cycloprothrin, demeton-s-methyl, diazinon, dimethoate, ethofenprox, fenitrothion, fenobucarb, fenthion, formothion, isoprocarb, isoxathion, monocrotophos, phenthoate, pirimicarb, propaphos and XMC.
Plant growth regulating compounds are compounds which control weeds or seedhead,· formation, or selectively control the growth of less desirable plants (e.g. grasses).
Examples of suitable plant growth regulating compounds for use with the invention compounds are 3,6dichloropicolinic acid, l-(4-chlorophenyl)-4,6-dimethyl2-oxo-l,2-dihydropyridine-3-carboxylic acid, methyl-3,625 dichloroanisate, abscisic acid, asulam, benzoylpropethyl, carbetamide, daminozide, difenzoquat, dikegulac, ethephon, fenpentezol, fluoridamid, glyphosate, glyphosine, hydroxybenzonitriles (e.g. bromoxynil), inabenfide, isopyrimol, long chain fatty alcohols and acids, maleic hydrazide, mefluidide, morphactins (e.g. chlorfluoroecol), paclobutrazol, phenoxyacetic acids
APO00126 bad original &
(e.g. 2,4-D or MCPA), substituted benzoic acid (e.g. triiodobenzoic acid), substituted quaternary ammonium and phosphonium compounds (e.g. chloromequat, chlorphonium or mepiquatchloride), tecnazene, the auxins (e.g. indoleacetic acid, indolebutyric acid, naphthylacetic acid or naphthoxyacetic acid), the cytokinins (e.g. benzimidazole, benzyladenine, benzylaminopurine, diphenylurea or kinetin), the gibberellins (e.g. GA-j, GA4 or GA?) and triapenthenol.
The following Examples illustrate the invention. In the Examples, the term 'ether' refers to diethyl ether, anhydrous magnesium sulphate was used to dry solutions, and solutions were concentrated under reduced pressure. Reactions involving air- or water-sensitive intermediates were performed under an atmosphere of nitrogen and solvents were dried before use, where appropriate.
Unless otherwise stated, chromatography was performed on a column of silica gel as the stationary phase.
NMR data are selective; no attempt is made to list every absorption in all cases. 1H NMR spectra were recorded using CDC13-solutions on an instrument operating at 270 MHz, unless otherwise stated. The following abbreviations are used j
DMSO » dimethylsulphoxide
DMF = Ν,Ν-dimethylformamide
NMR = nuclear magnetic resonance
IR = infrared
GC = Gas chromatography
TLC = Thin layer chromatography s = singlet d - doublet m - multiplet /πμ
BAD ORIGINAL mp = melting point 1 ppm = parts per million £ I 0 0 0 dV
EXAMPLE 1
This example illustrates the preparation of (E)— methyl 2-[2-(4-phenoxypyrimidin-2-yloxy)phenyl]-3methoxypropenoate (compound No. 1 of Table III).
To a suspension of sodium hydride (0.3g,6.85mmol, 50% dispersion in oil pre-washed with n-hexane) in dry DMF (4ml) was added dropwise a solution of phenol (0.59g, 6.23mmol) in dry DMF (1ml). The resulting mixture was stirred under an atmosphere of nitrogen until effervescence had ceased. The resulting mixture was diluted with dry DMF (3ml) and then added dropwise to a stirred solution of 4chloro-2-methylthiopyrimidine (l.OOg, 6.23mmol) in dry DMF (3ml) at 0*C. An exothermic reaction took place and the temperature of the reaction mixture rose to 5*C. After stirring under nitrogen for 30 minutes at 10*C, GC aqalysis indicated the formation of a single product (98.8%). The reaction mixture was diluted with water (15ml) and extracted with ether (2x20ml). The combined ether extracts were washed with 5% sodium hydroxide solution (2x15ml) and brine (15ml) and then dried. Evaporation of the solvent gave 2-methylthio-4-phenoxypyrimidine as a pale yellow oil (1.40g, 94% pure by GC) which was used directly in the next stage. NMR delta:
2.37(3H,s)ppm.
To a stirred solution of 2-methylthio-4phenoxypyrimidine (l.OOg, 4.59mmol) in chloroform (15ml) at -15’C was added m-chloroperbenzoic acid (2.88g, 9.17mmol) in chloroform (35ml). A white cloudy suspension formed. The reaction mixture was allowed to warm to room temperature and stirring continued for four hours. GC analysis indicated the formation of a single product (95%). The reaction mixture was washed with a saturated aqueous solution of sodium sulphite (2x25ml), saturated sodium carbonate solution (2x25ml) and water (25ml). The chloroform solution was separated and dried. The solvent was evaporated to give a colourless oil which crystallised on cooling and scratching to afford 210 methanesulphonyl-4-phenoxypyrimidine as a white solid (1.05g). Recrystallisation from chloroform:n-hexane gave a white finely divided powder, mp 113-116*C,
NMR delta: 3.17 (3H,s)ppm; IR maxima (nujol) 1133, 1315 cm'1.
To a solution of 2-methanesulphonyl-4phenoxypyrimidine (200mg, 0.80mmol) in dry DMF (2ml) at 0*C under an atmosphere of nitrogen was added anhydrous potassium carbonate (llOmg, 0.80mmol). A solution of (E)-methyl 2-(2-hydroxyphenyl)-320 methoxypropenoate (166mg, 0.80mmol; prepared as described in Example *3 of EP-A-0242081) in dry DMF (lml) was then added dropwise with stirring. The reaction mixture was allowed to rise to room temperature and then stirred over the weekend. The mixture was diluted with water (15ml) and then extracted with ether (2x20ml). The combined ether extracts were washed with brine, dried and evaporated to give a yellow oil. Chromatography (eluent ether: n-hexane, 5:1) gave a pale yellow cloudy oil, which on trituration with ether afforded the title compound as a white solid (0.10g). Recrystallisation from ether:n-hexane gave a white solid (65mg, 22% yield) mp 96-7’C; NMR delta: 3.57 (3H,s); 3.70 (3H,s)y 6.48 (lH,d)? 7.12-7.45 (9H,m); 7.42 (lH,s); 8.29 (lH,d)ppm.
IR maxima 1708, 1632 cm1.
AP 0 0 0 1 2 6
EXAMPLE 2
This example illustrates the preparation of (E)methyl 2-[2-(2-phenoxypyrimidin-4-yloxyphenyl]-3methoxypropenoate (compound No. 1 of Table II).
To a stirred solution of 4-chloro-2methylthiopyrimidine (10.OOg,62.3mmol) in glacial acetic acid (50ml) at 10-15*C was added a solution of potassium permanganate (12.50g,79.15mmol) in water (100ml). The reaction mixture was stirred overnight at room temperature, cooled to 5*C and then treated with gaseous sulphur dioxide until the dark solution was decolourised. Water was added and the mixture extracted with chloroform. The combined organic layers were washed with saturated aqueous sodium bicarbonate solution and then water, and dried. Evaporation gave 4-chloro-2-methanesulphonylpyrimidine as a white solid (10.84g),mp 91-3*C.
4-Chloro-2-methanesulphonylpyrimidine (7. OOg,36.33mmol) was treated with sodium phenoxide [from phenol (3.41g, 36.33mmol) and sodium hydride (1.74g,39.97mmol,50% dispersion in oil)] in dry DMF (100ml) at 0-5*C. After 30 minutes, the starting material had been consumed (GC analysis). The reaction mixture was diluted with water and then extracted with ether (x2). The combined extracts were washed with 5% aqueous sodium hydroxide solution (x2) and brine, and then dried. Evaporation of the solvent gave a very pale yellow, mobile oil (5.35g). Chromatography (eluent ether:n-hexane, 2:3) followed by crystallisation afforded 4-chloro-2phenoxypyrimidine as a white solid (3.50g,84% pure by GC). Further chromatography yielded pure product (2.50g,33%), mp 59-60’C.
To a stirred solution of 4-chloro-2phenoxypyrimidine (2.00g, 9.68mmol) in dry DMSO (15ml) and DMF (10ml) at 10*C under nitrogen was added dropwise a solution/ suspension of sodium methanethiolate (O.77g, 9.68mmol) in dry DMSO (15ml) and DMF (5ml). After approximately one hour below 15*C, the reaction mixture was diluted with water and then extracted (x3) with ether. The combined ether extracts were washed with brine and then dried. Evaporation of the solvent gave 4-methylthio-2phenoxypyrimidine as a thick, pale yellow oil (2.00g,87% pure by GC) which was used in the next stage without further purification.
4-methylthio-2-phenoxypyrimidine (2.00g, 7.96mmol) in glacial acetic acid (12ml) was treated with a solution of potassium permanganate (1.60g, 10.11 mmol) in water (20ml) as described above for 4-chloro-2-methylthiopyrimidine. Work up ♦
as before gave a pale yellow oil, which on trituration with ether and n-hexane afforded a pale yellow, slightly sticky powder (l.OOg).
Recrystallisation from carbon tetrachloride/chloroform (trace)/n-hexane gave 425 methanesulphonyl-2-phenoxypyrimidine as a white powder (0.70g, 35% yield) mp 86-7eC, NMR delta 3.19(3H,s)ppm; IR maxima (nujol) 1135, 1305 cra^ .
To a solution of 4-methanesulphonyl-2phenoxypyrimidine (300mg, 1.20mmol) in dry DMF (4ml) was added anhydrous potassium carbonate (116mg, 1.20mmol).
A solution of (E)-methyl 2-(2-hydroxyphenyl)-3methoxypropenoate (0.250g, 1.20mmol, prepared as
AP 0 0 0 1 2 6 described in Example 3 of EP-A-0242081) in DMF was added and the reaction mixture was stirred at room temperature overnight. It was poured into water and extracted with ether. The ether extracts were washed with brine, dried and concentrated to give a yellow oil (0.48g). Chromatography (eluent ether:n-hexane, 3:1) gave a white solid (O.34g). Recrystallisation from carbon tetracbloride/dichloromethane (trace)/n-hexane gave the title compound as a white powder (0.31g, 69% yield); mp 114-115*C, 1H NMR (270 MHz) delta: 3.60 (3H,s); 3.74 (3H,s); 6.43 (lH,d); 7.11-7.42 (9H,m); 7.46 (lH,s); 8.28 (lH,d) ppm.
Mass spectrum m/e 378 (M+).
EXAMPLE 3
This example illustrates the preparation of (E)methyl 2-[2-(6-(2-cyanophenoxy)pyrimidin-4yloxy)phenyl3-3-methoxypropenoate (compound No. 9 of Table I).
«
To a solution of 4,6-dichloropyrimidine (0.76g, 5.10mmol) in dry DMF (4ml) at 0*C was added anhydrous potassium carbonate (0.70g, 5.10mmol).
A solution of (E)-methyl 2-(2-hydroxyphenyl)-3methoxypropenoate (0.53g, 2.55mmol, prepared as described in Example 3 of EP-A-0242081) in dry DMF (2ml) was then added dropwise with stirring. After the addition was complete, the reaction mixture was allowed to warm to room temperature and stirring continued over the weekend. The reaction mixture was then diluted with water (15ml) and extracted with ether (3x20ml). The combined ether extracts were washed with brine and dried. Evaporation afforded a brown liquid (1.10g)
- 47 which was chromatographed (eluent etherjn-hexane, 3:2) to give (E)-methyl 2-[2-(6-chloropyrimidin-4yloxy)phenyl]-3-methoxypropenoate as a thick, pale yellow oil (0.58, 71% yield) which crystallised on 5 standing. Recrystallisation from ether/dichloromethane (trace)/n-hexane at -78*C gave the product as a white powder (0.25g),mp 94-5*C. In a separate preparation,
15g of product was obtained from 4,6-dichloropyrimidine (15.90g), (E)-methyl 2-(2-hydroxyphenyl)-310 methoxypropenoate (14.80g) and anhydrous potassium carbonate (19.64g).
(E)-Methyl 2-[2-(6-chloropyrimidin-4yloxy)phenyl3-3-methoxypropenoate (1.50g, 4.68mmol) was heated overnight at 95-100*C with 2-cyanophenol 15 (0.61g, 5.15mmol) and potassium carbonate (0.71g,5.15 mmol) in DMF (35ml) in the presence of a catalytic amount of copper(I) chloride. The reaction mixture was cooled, diluted with water and then extracted with ether. The combined ether layers were washed 20 with 2M sodium hydrox’ide solution and brine and then dried. Evaporation of the solvent gave a pale yellow oil (1.52g). Recrystallisation from ether/dichloromethane/n-hexane gave the title compound as a pale yellow powder (1.20g, 64% yield),mp 25 110-lll*C; 1H NMR delta: 3.63(3H,s); 3.74(3H,s);
6.42(lH,s); 7.19-7.47(6H,m); 7.50(lH,s)? 7.627.75(2H,m); 8.4O(1H,s)ppm. In a subsequent preparation of the title compound, recrystallisation gave a white crystalline solid, mp 118-119*C.
EXAMPLE 4
This example illustrates the preparation of (E)methyl 2-[2-(6-[2-hydroxyphenoxy]pyrimidin-4-yloxy)phenyl]AP 0 0 0 1 2 6
3-methoxypropenoate (compound No. 26 of Table I).
A mixture of catechol (6.6g, 0.06mol) and anhydrous potassium carbonate (8.28g, 0.06mol) in dry DMF (100ml) was heated for one hour at 110*C.
A catalytic amount of copper(I) chloride (0.2g) was then added followed by a solution of (E)-methyl 2-[2-(6chloropyrimidin-4-yloxy) phenyl ]-3-methoxypropenoate (12.82g, 0.04mol, prepared as described in Example 3) in dry DMF (50ml). The reaction mixture was heated at 110*C for two hours, left to stand overnight, and then poured into water. The resulting mixture was extracted with ether (extract A). The remaining aqueous layer was acidified with concentrated hydrochloric acid and then extracted again with ether, these second extracts then being washed with water (x3), dried and evaporated to give a brown gum (6.78g, extract B). Extract A was washed with dilute sodium hydroxide solution, and the resulting aqueous phase was acidifed with concentrated hydrochloric acid and extracted with ethyl acetate, this ethyl acetate extract then being washed with water, dried and* evaporated to give a brown gum (6.68g, extract C). Extracts B and C were combined and then chromatographed (eluent ether) to afford the title compound (7.8g, 49.5% yield) as a yellow solid which was identical to a sample prepared earlier on a smaller scale, mp 159-161’C, IR max. 3100, 1712, 1642 cm-1; NMR delta: 3.61 (3H, s); 3.75 (3H, s); 6.30 (1H, s); 6.52 (1H, s); 6.91-6.97 (1H, m); 7.057.21 (4H, m); 7.26-7.48 (3H, m); 7.45 (1H, s); 8.44 (1H, s)ppm.
EXAMPLE 5
This example illustrates the preparation of (E)methyl 2-[2-(6-(2-methoxyphenoxy)pyrimidin-449 yloxy)phenyl3-3-methoxypropenoate (compound No. 29 of Table I).
To a stirred solution of (E)-methyl 2-[2-(6-[2hydroxyphenoxyIpyrimidin-4-yloxy)phenyl 3-3methoxypropenoate (0.50g, 1.27mmol, prepared as described in Example 4) in dry DMF (15ml) at 0*C was added anhydrous potassium carbonate (0.17g, 1.27mol) and methyl iodide (0.22g, 1.52mmol). The reaction mixture was allowed to warm to room temperature, stirred for two hours and then left to stand over the weekend. The mixture was diluted with water (20ml) and then extracted with ether (3 x 25ml). The combined ether extracts were washed with dilute sodium hydroxide solution (2x20ml) and brine (20ml) and then dried. Evaporation gave a pale pink foam (0.36g) which was chromatographed (eluent ether-hexane, 7s1) to afford the title compound as a white foam (0.21g, 40% yield); XH NMR deltas 3.60 (3H, s); 3.76 (3H, s); 3.78 (3H, s); 6.25 (1H, s); 6.95-7.52 (8H, m); 7.49 (1H, s); 8.42 (1H, s)ppm.
In an alternative preparation, (E)-methyl 2-[2-(6chloropyrimidin-4-yloxy)phenyl 3-3-methoxypropenoate (l.OOg, 3.12mmol, prepared as described in Example 3) was treated with sodium methanethiolate (1.09g, 15.60mmol) at room temperature in chloroform (15ml) and water (10ml) in the presence of a catalytic amount of tetrabutylammonium bromide. After stirring overnight, the chloroform layer was separated and the remaining aqueous layer was further extracted with chloroform.
The combined chloroform layers were washed with water, dried and evaporated to give an orange oil (1.56g).
Chromatography (eluent ether-hexane, 2:1) gave (E) — methyl 2-[2-(6-methylthiopyrimidin-4-yloxy)phenyl3-3methoxypropenoate as a pale yellow oil (0.92g, 89% yield); XH NMR delta: 2.52 (3H, s); 3.59 (3H, s); 3.73 (3H, s); 6.55 (1H, s); 7.17 (1H, d); 7.20-7.55 (3H, m);
AP000126
7.45 (1H, s)? 8.57 (1H, s)ppm.
The product (0.20g, 0.6mmol) was stirred overnight with meta-chloroperbenzoic acid (0.38g of 55% pure material) in chloroform (25ml) at room temperature. Work-up gave the corresponding sulphone (0.26g, 94% pure by gc) as a thick, colourless oil which was used directly in the next stage without further purification, NMR delta: 3.25 (SO2CH3), 7.45 (olefinic proton)ppm.
To a stirred solution of the sulphone (0.24g) in dry DMF (6ml) was added anhydrous potassium carbonate (0.091g) and a solution of 2-methoxyphenol (0.082g) in dry DMF (2ml). The reaction mixture was stirred for four hours and then overnight at room temperature, diluted with water (15ml) and then extracted with ether (3x20ml). The combined ether extracts were washed with dilute sodium hydroxide solution (2x15ml) and brine (15ml) and then dried. Evaporation gave a thick, pale yellow oil (0.25g). Chromatography (eluent etherhexane, 7:1) afforded the title compound as a sticky, white foam (0.17g, 63% yield), NMR as before.
EXAMPLE 6
This example illustrates the preparation of (E)methyl 2-[2-(6-(2-thiocarboxamidophenoxy)pyrimidin-4yloxy)phenyl]-3-methoxypropenoate (Compound No. 59 of Table I).
Excess hydrogen sulphide gas was bubbled through a stirred solution of (E)-methyl 2—£2—(6—(2— cyanophenoxy)pyrimidin-4-yloxy)phenyl-3methoxypropenoate (2.09g, 15.19mmol, prepared as described in Example 3) and triethylamine (0.52g) in dry pyridine (45ml) at 50*C. After 4¾ hours at 50*C and one week at room temperature, excess hydrogen sulphide was removed by passing air through the reaction mixture.
The resulting brown solution was evaporated and azeotroped with toluene (2x50ml) to give a brown oil, which was triturated with water (3x40ml). The residue was chromatographed (eluent acetone-hexane, 2:3) to afford a pale yellow oil (0.79g). Trituration with hexane gave the title compound as a pale orange powder (0.68g, 30% yield) mp 125-128*C. A sample prepared subsequently had mp 131-3'C, 1H NMR delta: 3.63 (3H, s); 3.78 (3H, s); 6.27 (1H, s); 7.18 (1H, d),· 7.10-7.60 (6H, m); 7.49 (1H, s); 7.71 (1H, s); 7.91 (1H, s); 8.05 (1H, dd); 8.39 (1H, s)ppm.
EXAMPLE 7
This example illustrates the preparation of:
ch3°2c
OCH(Compound No.
AP 0 0 0 1 2 6
123 of Table I) and:
(Compound No. 123 of Table II)
To a stirred mixture of (E)-methyl 2-(2hydroxyphenyl)-3-methoxypropenoate (2.43g, prepared as described in Example 3 of EP-A-0242081) and anhydrous potassium carbonate (1.61g) in dry DMF (25ml) at 0*C, was added dropwise a solution of 2,4,6trichloropyrimidine in dry DMF (5ml). The reaction mixture was stirred for 30 minutes at 0*C and over the weekend at room temperature and then poured into water and extracted with ether (x3). The combined ether extracts were washed with dilute sodium hydroxide solution and water (x3) and then dried. Evaporation afforded an orange gum (2.62g) which was chromatographed (eluent ether-hexane mixtures) to give (E)-methyl 2-[2(2,4-dichloropyrimidin-6-yloxy)phenyl]-315 methoxypropenoate (0.65g) as an off-white solid, mp 8890*C, and a mixture (1.07g, approx 1:1) containing:
To a stirred solution of part of this mixture (0.97g) in THF (25ml) were added 5% Pd/C catalyst (O.llg) and then, dropwise over 5 minutes, sodium hypophosphite (0.405g) in water (5ml). After stirring at room temperature for two hours, the temperature was raised to 60*C and additional portions of sodium hypophosphite (0.41g) in water (5ml) (after a further 30 minutes) and potassium carbonate (0.76g) and palladium catalyst (O.llg) (after a further one hour) were added.
When the starting materials had been consumed (GC and
TLC analysis) the reaction mixture was. filtered through celite, washing the plug with ether and water. The layers of the filtrate were separated and the aqueous layer was extracted with more ether. The combined ether layers were washed with water (x2), dried and evaporated to give a white foam (0.78g). Chromatography (eluent ether) gave compound No. 123 of Table I, eluted first, as a white solid (0.34g); mp 130-131*C? IR max. 1705, 1693, 1636 cm1? XH NMR delta: 3.59 (6H, s); 3.75 (6H,
s)j 6.16 (1H, s); 7.14-7.18 (2H, m); 7.24-7.41 (6H, m); 7.45 (2H, s); 8.39 (1H, s) ppm; and compound No. 123 of Table II as a white foam (0.23g); mp 60-70*C? IR max. 1706, 1632cm1; 1H NMR delta: 3.56 (3H, s) 3.58 (3H, s); 3.70 (3H, s); 3.74 (3H, s); 6.34-6.37 (1H, d); 7.1525 7.35 (8H, m); 7.44 (1H, s); 7.47 (1H, s); 8.21-8.24 (1H, s)ppm.
EXAMPLE 8
This example illustrates the preparation of (E)methyl 2-[2-(4-fluoropyrimidin-6-yloxy)phenyl]-3-methoxypropenoate, an intermediate for the synthesis of compounds of the invention.
APO 00126
A mixture of 4,6-dichloropyrimidine (6.50g), sulphur tetrafluoride (20.8g) and Arcton 113 (35ml) was heated at 50*C with stirring in a 100ml Monel reactor for 3.3 hours. The temperature was increased to 100*C over 25 minutes and maintained at 100*C for a further 3 hours.
The temperature was increased to 151*C over 20 minutes and maintained at 151 eC for 3 hours. The vessel was then allowed to cool to room temperature. The reaction mixture was poured into saturated sodium hydrogen carbonate solution and extracted with dichloromethane.
A sticky solid was observed at the interface and was removed by filtration. The layers were then separated.
The organic layer was washed with water, and then distilled at atmospheric pressure to remove the dichloromethane. 4,6-Difluoropyrimidine was isolated by distillation in vacuo (50*C/l00mmHg) as a light yellow oil (400mg; 7.3% yield); ΣΗ NMR deltas 6.61 (1H, s); and 8.69 (1H, s)ppm.
To a solution of (E)-methyl 2-(2-hydroxyphenyl)-3methoxypropenoate (359mg, 1.724mmol, prepared as described in Example 3 of EP-A-0242081) in dry DMF (3ml) at room temperature was added dry potassium carbonate (476mg, 3.45mmol) in one portion. The reaction mixture was stirred at room temperature for 20 minutes, then a solution of 4,6-difluoropyrimidine (200mg) in dry DMF (2ml) was added, via syringe, over approximately 1 minute. The reaction mixture was then stirred for a further 20 hours at room temperature, poured into water (20ml) and extracted with ethyl acetate (4x30ml). The combined extracts were washed successively with water (2x100ml) and with saturated brine (1x100ml), then dried and concentrated to give the title compound as a sticky yellow oil (464mg; 88% yield); NMR delta: 3.59 (3H, s);
3.73 (3H, s); 6.32 (1H, s); 7.16-7.43 (4H, m); 7.45 (1H, s); 8.51 (1H, d)ppm.
The following are examples of compositions suitable for agricultural and horticultural purposes which can be formulated from the compounds of the invention. Such compositions form another aspect of the invention. Percentages are by weight.
EXAMPLE 9
An emulsifiable concentrate is made up by mixing and stirring the ingredients until all are dissolved.
Compound No. 9 of Table I 10%
Benzyl alcohol 30%
Calcium dodecylbenzenesulphonate 5%
Nonylphenolethoxylate (13 mole 10% ethylene oxide)
Alkyl benzenes 45%
EXAMPLE 10
The active ingredient is dissolved in methylene dichloride and the resultant liquid sprayed on to the granules of attapulgite clay. The solvent is then allowed to evaporate to produce a granular composition.
Compound No. 9 of Table I 5%
Attapulgite granules 95%
AP 0 0 0 1 2 6
EXAMPLE 11
A composition suitable for use as a seed dressing is prepared by grinding and mixing the three ingredients.
Compound No. 9 of Table I 50%
Mineral oil 2%
China clay 48%
EXAMPLE 12
A dustable powder is prepared by grinding and mixing the active ingredient with talc.
Compound No. 9 of Table I 5%
Talc 95%
EXAMPLE 13
A suspension concentrate is prepared by ball milling the ingredients to form an aqueous suspension of the ground mixture with water.
Compound No. 9 of Table I 40%
Sodium lignosulphonate 10%
Bentonite clay 1%
Water 49%
This formulation can be used as a spray by diluting into water or applied directly to seed.
EXAMPLE 14
A wettable powder formulation is made by mixing 20 together and grinding the ingredients until all are thoroughly mixed.
Compound No. 9 of Table I 25% Sodium lauryl sulphate 2% Sodium 1ignosulphonate 5% Silica 25% China clay 43%
EXAMPLE 15
The compounds were tested against a variety of foliar fungal diseases of plants. The technique employed was as follows.
The plants were grown in John Innes Potting 5 Compost (No 1 or 2) in 4cm diameter minipots. The test compounds were formulated either by bead milling with aqueous Dispersol T or as a solution in acetone or acetone/ethanol which was diluted to the required concentration immediately before use. For the foliage diseases, the formulations (100 ppm active ingredient) were sprayed onto the foliage and applied to the roots of the plants in the soil. The sprays were applied to maximum retention and the root drenches to a final concentration equivalent to approximately 40 ppm a.i. in dry soil. Tween 20, to give a final concentration of 0.05%, was added when the sprays were applied to cereals.
For most of the tests the compound was applied to the soil (roots) and to the foliage (by spraying) one or two days before the plant was inoculated with the disease. An exception was the test on Erysiphe graminis in which the plants were inoculated 24 hours before treatment. Foliar pathogens were applied by spray as spore suspensions onto the leaves of test plants. After inoculation, the plants were put into an appropriate environment to allow infection to proceed and then incubated until the disease was ready for assessment. The period between inoculation and assessment varied from four to fourteen days according to the disease and environment.
The disease control was recorded by the following grading :
= no disease = trace -5% of disease on untreated plants 2 = 6-25% of disease on untreated plants 1 = 26-59% of disease on untreated plants 0 = 60-100% of disease on untreated plants
The results are shown in Table V.
TABLE V
PHYTOPHTHORA INFESTANS (TOMATO)
PLASMOPARA VITICOLA (VINE)
CERCOSPORA ARACHIDICOLA (PEANUT) 4
PYRICULARIA ORYZAE (RICE) Λ O0^-3-3O-fO0-,-3-3-30lO0i-3
VENTURIA INAEQUALIS (APPLE) L „.......... : 1 .......-
ERYSIPHE GRAMINIS ( BARLEY)
PUCCINIA RECONDITA (WHEAT) Ο «
TABLE NO Μ Μ Μ Μ Ι-Μ Μ »-Ι Μ 1-1 ΚΜ 1-4 F4 Ι-( 1-1 W
COMPOUND NO ο>-Η<*ι·^ιη\θ\β9\θ
AP000126
TABLE V
PHYT0PHTH0RA INFESTANS (TOMATO) 4-400144-4-4-44-4-4-4
PLASMOPARA VITICOLA (VINE) i • -4-4-4-4-4-4-4-4-4-4-4-4-4
CERCOSPORA ARACHIDICOLA ( PEANUT)
PYRICULARIA ORYZAE (RICE) • ¢--14010^(^04,-1.40^^-4
VENTURIA INAEQUALIS (APPLE) ^^-44-44-4-4-4^^-4-4 •
ERYSIPHE GRAMINIS (BARLEY) « 44044444444444
1-1 PUCCINIA RECONDITA (WHEAT) <e *i cn (η <r
TABLE NO 1-11-11-11-11-11-1(-1(-11-(1-1(-((-1(-4
COMPOUND NO
-61TABLE V
PHYTOPHTHORA INPESTANS (TOMATO) ^¢0-4^-4-4-4-4 co <r i -4 -4 -4 -4-4-4 0a 3 «0 CO co -4 -4 «1 co <9 O -4 -4
PLASMOPARA VITICOLA (VINE) -4 -4 -4 -4 -4 -4 -4 -4 -4 ( «Β «4 -4 «4 -4 <B -4 •4 to -4 4 «4
CERCOSPORA ARACHIDICOLA (PEANUT) 1 sf T -4 -4 -4 1 -4 -* -4 -4 I i 1 1 1 1 -4
αέ
PYRICUL ORYZAE (RICE) CO 'T <*> *T T ·*ί *T -4 „4 1 1 -4 -4 -4 1 n <e co -4 m
F VENTURIA INAEQUALIS (APPLE) -4-4-4-4-4-4-4-4 «ί < -4 -4 -4 -4 -4 -4 <*1 * -4 •4 -4 -4 *» to o -4 «· -4 -4 -4
td CO z-x x ι-i ία, as td t-l M -J £ 5 2 • -4 < -4 -4 -4 -4 «4 -4 -4 « ro -4 -4 -4 -4 -4 <0 -4 -4 <0 <-> «4 -4
cd « ca U Uxy
PUCCINIA- RECONDITA (WHEAT) -4-1-4-4-4-4-4-4 -4 -4 -4 -4 -4 -4 -4-4-4 -4 -4 -4 <4 -4 -4 <8 -4 -4 <9 -4 -4
TABLE NO M HI HI Μ Μ Μ M HI Μ K4 1-4 t~4 M t-l H( 1-1 H1 H H H H t—1 t-l H H H H H
COMPOUND NO -J CM -4-0r--O>-^CMOO >t (Λ r*. OO o o o o o o i“4 H 109 110 111 112 113 *4 H H U*i ^•4 z··^ 116 117 118 σ» H ^4 r·^ 122 161
AP Ο Ο Ο 1 2 6
TABLE V
PHYTOPHTHORA INFESTANS (TOMATO) Xi « en
PLASMOPARA VITICOLA (VINE) Λ 5 «ί
CERCOSPORA ARACHIDICOLA (PEANUT) ,O « >t 4 >»
PYRICULARIA ORYZAE (RICE) Λ <8 «s n <-<
VENTURIA INAEQUALIS (APPLE) .o -st 1 >
ERYSIPHE GRAMINIS (BARLEY) Λ <0 ci
PUCCINIA RECONDITA (WHEAT) .Λ CO
TABLE NO Μ M kU t-U kU kU M kU
COMPOUND NO ^U O'
X
eM
c e C
o o 0
X x X
CO <0
tu u lu
α- <x o-
οο CD •
lu u u
CO CO
• ,U
w
o o o
MU Mu Mu «
g. β Ol V u
CL CL o.
O ΙΛ o
^u €S| m z
<0 c 1

Claims (8)

1.
Compounds having the formula (I):
in which any two of K, L and M are nitrogen and the other is CE; X and Y are independently hydrogen, halogen, Cj_4 alkyl, C3_g cycloalkyl,
C2_4 alkenyl, C2_4 alkynyl, C
2_4 alkynyloxy, phenyl, benzyloxy, cyano, isocyano, isothiocyanato, nitro, NR1R2, NR^OR2,!^, NHCOR1, nr1co2r2, nhconr1r2, n=chnr1r2, nhso2r1, or1,
OCOR1, OSOjR1, SR1, SOR1, SOjR1, so^r1,
SO2NR1R2, COR1, CR1=NOR2, CHR1CO2R2, CO2R1,
CONR1R2, CSNR1R2, CH3O2C.C:CH.OCH3, l-(imidazol-lyl)vinyl, a 5-mqmbered heterocyclic ring containing one, two or three nitrogen heteroatoms, or a 5- or
6-membered heterocyclic ring containing one or two oxygen or sulphur hetero-atoms, optionally a nitrogen heteroatom and optionally one or two oxo or thioxo substituents? or X and Y, when ortho to one another, join to form a 5- or 6-membered aliphatic or aromatic ring optionally containing one or two oxygen, sulphur or nitrogen atoms or one, two or three nitrogen atoms; A, B, D, E, G, U and V are independently hydrogen, halogen, C1-4 alkyl C^_4 alkoxy, cyano, nitro or tri fluoromethyl; and R1 and R2 are independently hydrogen, C^_4 alkyl or phenyl; the aliphatic moieties of any of the foregoing being optionally substituted with one
AP000126 or more of halogen, cyano, OR1, SR1,NR1r2,
SiR1^, or OCOR1 and the phenyl moieties of any of the foregoing being optionally substituted with one or more of halogen, Cj_4 alkyl, C^-4 alkoxy, nitro or cyano.
Compounds according to claim 1 in which any two of K, L and M are nitrogen and the other is CH; A, B, D, G, U and V are all hydrogen; X is hydrogen, halogen, Cj_4 alkyl, C1-4 alkyl substituted with halogen, hydroxy, cyano, Cy_4 alkoxy or C1-4 alkanoyloxy, C2_4 alkenyl, C2_4 alkynyl, C2_4 alkenyloxy, C2_4 alkynyloxy, phenyl, benzyl, cyano, isocyano, isothiocyanato, nitro, amino, mono- or di(C^_4)alkylamino, formylamino, C^_4 alkanoylamino, benzylamino, ureido, pbenylureido, C^_4 alkylsulphonylamino, phenylsulphonylamino, hydroxy, Cj_4 alkoxy, phenoxy, C^_4 alkanoyloxy, Cj_4 alkylsulphonylo^y, phenylsulphonyloxy, C1-4 alkylthio, C^_4 alkylsulphinyl, C1-4 alkylsulphonyl, formyl, Cj_4 alkanoyl, benzoyl, hydroxyimino(Cy_4)alkyl, C^_4 alkoxyimino(C|_4) alkyl, carbamoyl, C^_4 alkylcarbamoyl, thiocarbamoyl or C^_4 alkylthiocarbamoyl, the phenyl ring of any of the foregoing being optionally substituted with halogen, C^_4 alkyl, Cy_4 alkoxy, nitro or cyano; and Y is halogen, C1-4 alkyl, C1-4 alkoxy, nitro, cyano or hydrogen, or X and Y, when ortho to one another, together form methylenedioxy, or together with the phenyl ring to which they are attached form a naphthalene, quinoline, benzimidazole or benzothienyl ring.
3. Compounds according to claim 2 in which X is attached to the 2-position of the phenyl ring.
4. Compounds having the formula (I.l)j (1.1) in which X is hydrogen, halogen, C|_4 alkyl,
5 ci-4 alkoxy, tri fluoromethyl, cyano, thiocarbamoyl or nitro, and Y is hydrogen or fluoro.
5. A process for preparing a compound according to claim 1 which comprises
10 (a) reacting a compound of formula (II):
AP 0 0 0 1 2 6 (II) with a compound (III) (III) or (b) reacting a compound of formula (VIII):
(VIII) with a compound of formula (IX) (IX) or (c) reacting a compound of formula (XI):
(XI) or
V (V) with a compound of formula (VII)s (VII) wherein A, B, D, G, K, L, M, U, V, X and Y have the meanings given in claim 1, T1 and
5 are each hydrogen or a metal atom, Z1 and Z^ are each leaving groups and W is the group CH3O2C.C=CH.OCH3’ or a group that is subsequently transformed into CH3O2C.C=CH.OCH3,· and, where T1 or is hydrogen, the reaction is carried
10 out in the presence of a base.
6. (E)-Methyl 2-[2-(4-methylsulphonylpyrimidin-6yloxy)phenyl]-3-methoxypropenoate.
7. A fungicidal composition comprising a fungicidally effective amount of a compound
15 according to claim 1 and a fungicidally acceptable carrier or diluent therefor.
APO 0012 6
8. A method of combating fungi which comprises applying to plants, to the seeds of plants or to the locus of the plants or seeds, a compound according to claim 1 or a composition according
5 to claim 7.
APAP/P/1990/000162A 1989-02-10 1990-02-05 Fungicides. AP126A (en)

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DD291997A5 (en) 1991-07-18
TR27525A (en) 1995-06-07
ES2063253T3 (en) 1995-01-01
NL350042I2 (en) 2009-10-01
MD1006C2 (en) 1999-07-31
NL971016I2 (en) 1998-03-02
LTIP934A (en) 1995-03-27
IE900272L (en) 1990-08-10
LU91197I2 (en) 2005-10-31
LV10018A (en) 1994-05-10
CA2008701A1 (en) 1990-08-10
IL93199A (en) 1994-10-21
MY105613A (en) 1994-11-30
DK0382375T3 (en) 1994-04-11
PL161278B1 (en) 1993-06-30
EP0382375A2 (en) 1990-08-16
BR9000591A (en) 1991-01-15
PL286250A1 (en) 1991-04-08
EP0382375A3 (en) 1991-01-23
IE66312B1 (en) 1995-12-27
CZ43090A3 (en) 1997-03-12
AU625501B2 (en) 1992-07-16
NL971016I1 (en) 1997-09-01
HK1005453A1 (en) 1999-01-08
KR900012917A (en) 1990-09-03
SK43090A3 (en) 1998-07-08
DE122006000030I2 (en) 2010-10-07
PT93089A (en) 1990-08-31
AU4905290A (en) 1990-08-16
JPH02264765A (en) 1990-10-29
CA2008701C (en) 1998-06-30
NL350029I1 (en) 2006-09-01
NZ232275A (en) 1991-11-26
NL350029I2 (en) 2006-10-02
ZA90687B (en) 1991-04-24
HUT53888A (en) 1990-12-28
LTIP868A (en) 1995-03-27
GB9002538D0 (en) 1990-04-04

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