CN1626526A - Compound of alpha, beta and beta, gamma unsaturation carboxylate class of possessing weeding activity - Google Patents

Compound of alpha, beta and beta, gamma unsaturation carboxylate class of possessing weeding activity Download PDF

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CN1626526A
CN1626526A CN 200310119043 CN200310119043A CN1626526A CN 1626526 A CN1626526 A CN 1626526A CN 200310119043 CN200310119043 CN 200310119043 CN 200310119043 A CN200310119043 A CN 200310119043A CN 1626526 A CN1626526 A CN 1626526A
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compound
beta
alkyl
alpha
gamma
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CN1301251C (en
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李斌
相东
崔东亮
马宏娟
张宗俭
白丽萍
徐龙鹤
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Shanghai Zhonghua Technology Co ltd
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Shenyang Research Institute of Chemical Industry Co Ltd
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Abstract

An unsaturated alpha, beta-and beta, gamma-carboxylate with high herbiciding activity is disclosed.

Description

α with weeding activity, β and beta, gamma unsaturated carboxylate type compound
Technical field
The invention belongs to the weedicide field.
Background technology
Because weedicide or its composition are in use for some time, weeds can produce resistance to it, therefore, need constantly invention novel with improved herbicidal compound and composition.In addition, consider the factor of aspects such as energy economy ﹠ environment, the invention weedicide different with existing herbicide action mechanism also is very important.
Some α, β and beta, gamma unsaturated carboxylate type compound are as the existing report of weedicide (USP6251829).But as alpha-substitution acidic group α shown in the present, β and beta, gamma unsaturated carboxylate type compound are not seen open.
Summary of the invention
The invention provides a kind of alpha-substitution acidic group α of novel structure, β and beta, gamma unsaturated carboxylate type compound, as general formula (I, II) shown in:
Figure A20031011904300031
Wherein:
R is selected from H, C 1-C 6Alkyl, C 3-C 6Thiazolinyl or C 3-C 6Alkynyl;
Q is selected from one of group as follows:
Figure A20031011904300032
R 1, R 2Be selected from H or C 1-C 4Alkyl;
And steric isomer.
Comparatively preferred compound is among the present invention:
R is selected from H, C 1-C 6Alkyl, C 3-C 6Thiazolinyl or C 3-C 6Alkynyl;
Q is selected from Q2,
R 2Be selected from C 1-C 4Alkyl,
And steric isomer.
More preferred structural formula of compound is as follows among the present invention:
In the formula, the carbon atom of mark * is the R type.
The alkyl of indication comprises the straight or branched alkyl in the general formula.Thiazolinyl is meant the straight or branched form, the group of 1 to 2 carbon-carbon double bond is arranged, for example vinyl, propenyl, allyl group etc.Alkynyl is meant the straight or branched form, and 1 to 2 carbon carbon triple-linked group, for example ethynyl, proyl, propargyl etc. are arranged.
General formula compound of the present invention (I II) can be prepared by following method:
With raw material (III can be buied by market) be dissolved in The suitable solvent, in alkaline aqueous solution, temperature reacted 0.5-48 hour down to boiling point for-10 ℃, again through hydrochloric acid or sulfuric acid acidation, making intermediate acid is compound (III-1).The suitable solvent is selected from as chloroform, methylene dichloride, tetracol phenixin, normal hexane, benzene, toluene, ethyl acetate, THF or dioxane; Suitable alkali is selected from sodium hydroxide, potassium hydroxide, yellow soda ash, salt of wormwood or sodium bicarbonate.
Intermediate acid (III-1) and SOCl 2, oxalyl chloride or PCl 3Be dissolved in The suitable solvent, for example chloroform, methylene dichloride, tetracol phenixin, normal hexane, benzene, toluene, ethyl acetate is in THF or the dioxane, with organic bases such as triethylamine, pyridine or DMF make catalyzer, and temperature made acyl chlorides (III-2) for-10 ℃ in 0.5-48 hour to the following reaction of boiling point.
Acyl chlorides (III-2) and 2-hydroxy-3-methyl-3-crotonate (can by buying on the market), in The suitable solvent, temperature be reacted down to boiling point and to be made product (I) in 0.5-48 hour for-10 ℃.Solvent can be chloroform, methylene dichloride, tetracol phenixin, hexane, benzene, toluene, ethyl acetate, acetone, DMF, THF or dioxane etc.Add alkaloids, as triethylamine, pyridine, sodium hydroxide, potassium hydroxide, yellow soda ash, salt of wormwood, sodium bicarbonates etc. are to reacting favourable.
Acyl chlorides (III-2) and 2-hydroxy-3-methyl-2-butylene acid esters (can by buying on the market) reaction can make product (II).The selection of reaction conditions and solvent, alkali is the same.
Table 1: the The compounds of this invention of part shown in general formula I
Compound Q R [α] D 25Annotate
1
Figure A20031011904300052
C 2H 5Oily matter
2 C 2H 5+ 18.84 R types, oily matter
3 C 2H 5Oily matter
Table 2: the The compounds of this invention of part shown in general formula I I
Compound Q R annotates
4???? ??????????????????C 2H 5
5 C 2H 5The R type, oily matter
6????
Figure A20031011904300058
?????????????????C 2H 5
Part of compounds in the table 1H NMR (CDCl 3) data are as follows:
Compound 1:7.361-7.330 (q, 1H), 7.284-7.252 (q, 1H), 7.118-7.065 (t, 1H), 5.502-5.500 (d, 1H), 5.397-5.218 (q, 2H), 5.191-5.082 (q, 1H), and 5.133-5.120 (q, 1H), 4.261-4.184 (q, 2H), 1.782-1.774 (q, 3H), and 1.281-1.239 (t, 3H)
Compound 2:8.672 (s, 1H), 8.049-8.041 (d, 1H), 7.696-7.667 (d, 1H), and 7.619-7.582 (q, 1H), 7.200-7.166 (m, 2H), 7.015-6.980 (m, 2H), 5.474-5.458 (d, 1H), 5.230-5.193 (q, 1H), and 5.151-5.126 (m, 1H), 4.938-4.859 (q, 1H), 4.242-4.207 (q, 2H), 1.808-1.793 (q, 3H), 1.764-1.703 (q, 3H), 1.271-1.254 (d, 3H)
Compound 3:7.35-7.30 (m, 2H), 7.15-7.05 (m, 6H), 5.65 (s, 1H), 5.30 (s, 1H), 5.18 (s, 2H), 4.65-4.60 (d, 1H), 4.32-4.22 (q, 2H), 3.50-3.45 (d, 1H), 1.80 (s, 3H), 1.35-1.28 (t, 3H)
(I, II) compound has weeding activity to general formula of the present invention, uses behind Miao Qianmiao and can effectively control single broadleaf weed.Compare with compound of the prior art, have the weeding activity of wide spectrum more.
The present invention comprises that also (I, II) compound is the herbicidal composition of active ingredient with general formula.The weight percentage of active ingredient is 1-99% in this herbicidal composition.Comprise also in this herbicidal composition that agricultural goes up acceptable carrier.
Herbicidal composition of the present invention can several formulations form use.Usually with compound dissolution of the present invention or be scattered in and be mixed with preparation in the carrier so that be easier to disperse when using as weedicide.For example: these chemicals can be made into wettable powder or missible oil.Therefore, in these compositions, add a kind of liquid or solid carrier at least, and need to add suitable tensio-active agent usually.
Other embodiments of the present invention are method of controlling weeds, and this method comprises herbicidal composition of the present invention is imposed on the surface of the place of described weeds or described weed growth or its growth medium.Usually the comparatively suitable significant quantity of selecting is that per hectare 10 restrains 5000 grams, and preferred significant quantity is that per hectare 50 restrains 2000 grams.Use for some, can in herbicidal composition of the present invention, add one or more other weedicide, can produce additional advantage and effect thus.
Compound of the present invention both can use separately also can be mixed together use with other known sterilant, sterilant, plant-growth regulator or fertilizer etc.
Should be clear and definite be in claim of the present invention institute restricted portion, can carry out various conversion and change.
Embodiment
The following example and living test are tested the result and be can be used to further specify the present invention, but do not mean that restriction the present invention.
Synthetic example
Synthesizing of compound 2:
Figure A20031011904300061
In 500 milliliters reaction flask, add A (R type, 30.0 gram, can be buied by market by 0.0804 mole) and 80 milliliters of tetrahydrofuran (THF)s, be stirred to molten entirely, the solution that adds 3.2 gram sodium hydroxide and 80 ml waters, stirring at room 5 hours, stopped reaction, add 100 milliliters of ethyl acetate extractions, water concentrated hydrochloric acid acidifying, getting intermediate acid is white solid (B1), dry back weighs 25 grams.
In 250 milliliters reaction flask, add B1 (20.0 gram, 0.058 mole) and 150 milliliters of methylene dichloride, stir, add oxalyl chloride (11.0 grams, 0.087 mole), 3 DMF, stirring at room 4 hours concentrates to such an extent that 23 restrain acyl chlorides, and outward appearance is yellow liquid (C1).
In 50 milliliters reaction flask, add A1 (0.68 gram, 3.3 millis rub), triethylamine (0.56 gram), in 5 milliliters of dichloromethane solutions, stir the mixed solution that cooling drips C1 (1.0 grams, 2.75 millis rub) and 10 milliliters of methylene dichloride down, add half an hour approximately, reaction is 5 hours under the room temperature.Reaction is finished, in reaction solution, add 100 milliliters of ethyl acetate and 50 ml waters, separatory, ethyl acetate layer is used saturated sodium bicarbonate aqueous solution, each 100 milliliters of washing of saturated sodium-chloride water solution successively, and anhydrous magnesium sulfate drying concentrates, with developping agent is ethyl acetate: the silica gel column chromatography of sherwood oil=1: 10 separates, get the faint yellow oily thing of 1.5 grams, be compound 2, [α] D 25:+18.84.
Other compounds in the table 1,2 can make by above similar method.
Give birth to and survey example
With the former medicine of acetone solution, by design dosage, join in the certain water gaging that contains tensio-active agent, make certain density preparation.Spray with mobile belt atomizer.The examination material is put in spraying rolling in the cupboard and is with, and mobile shower nozzle is sprayed onto medicament on the examination material with the covering of the fan Sprayable through examination material top, identical on nozzle and the common field spray device.Roll band and will try material and shift out outside the cupboard, place loft drier dry.
Test before the seedling: after planting carry out, test compound sparges soil surface, handles and is placed on the greenhouse, waters then; Test behind the seedling, seed germination also grew 10-21 days, made the examination material that has a series of growing stages before the processing, selected size, the consistent examination material of growing stage then, handled, and handled to be placed on the greenhouse and to water.The examination material with compound treatment does not compare.The examination material is broadleaf weed youth-and-old-age, piemarker and Cassia tora; Monocotyledon weed barnyard grass grass, dog tail and lady's-grass.
Examination material after the spraying drying places the greenhouse.Test is from the top water spray before the seedling, and test is poured water from the bottom and kept 48 hours so that water does not touch the blade face behind the seedling.
Handling the back investigated in 4 weeks.Inhibiting rate is total effect of various infringements such as chlorosis, withered spot, retarded growth or the calcination of leaf angle, obtains the result with blank after relatively.Partial test the results are shown in Table 3.
Table 3: the weeding activity of compound in the part general formula I
[before the seedling behind (2250 gram/hectare)/seedling (2250 gram/hectare)]
Compound The barnyard grass grass Lady's-grass Herba Setariae Viridis Cassia tora Piemarker Youth-and-old-age
????1 ???0/0 ???80/0 ???50/0 ???100/85 ???100/95 ??100/100
????2 ???100/100 ???100/100 ???100/100 ???10/85 ???0/0 ??0/0
????3* ???60/90 ???0/0 ???80/85 ???--** ???0/90 ??--
????5* ???100/100 ???100/100 ???100/100 ???-- ???0/50 ??--
Annotate *: the consumption of compound 3,5 is before the seedling behind (1200 gram/hectare)/seedling (1200 gram/hectare);
Annotate * *: do not survey.

Claims (6)

1, alpha-substitution acidic group α, β and beta, gamma unsaturated carboxylate type compound, as general formula (I, II) shown in:
Wherein:
R is selected from H, C 1-C 6Alkyl, C 3-C 6Thiazolinyl or C 3-C 6Alkynyl;
Q is selected from one of group as follows:
Figure A2003101190430002C2
R 1, R 2Be selected from H or C 1-C 4Alkyl;
And steric isomer.
2, compound as claimed in claim 1 is characterized in that, in the general formula:
R is selected from H, C 1-C 6Alkyl, C 3-C 6Thiazolinyl or C 3-C 6Alkynyl;
Q is selected from Q2,
R 2Be selected from C 1-C 4Alkyl,
And steric isomer.
3, compound as claimed in claim 2 is characterized in that, is selected from the compound of following structure:
In the formula, the carbon atom of mark * is the R type.
4, a kind of herbicidal composition contains compound as claimed in claim 1 and agricultural goes up acceptable carrier, and the weight percentage of active ingredient is 1-99% in the composition.
5, the described compound of claim 1 or its composition are used to control the purposes of single broadleaf weed.
6, a kind of control method for weed is characterized in that: the herbicidal composition as claimed in claim 4 of using herbicidally effective amount on the growth mediums of weeds or weeds or place.
CNB2003101190433A 2003-12-12 2003-12-12 Compound of alpha, beta and beta, gamma unsaturation carboxylate class of possessing weeding activity Expired - Lifetime CN1301251C (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125337A1 (en) * 2005-05-23 2006-11-30 Sinochem Corporation α, β- AND, Ϝ-UNSATURATED CARBOXYLATES AND THE USE AS HERBICIDIDE THEREOF
CN100364955C (en) * 2005-09-18 2008-01-30 大连理工大学 2-(dibasic) methyl acrylic ester compound and its use
CN100443475C (en) * 2005-09-08 2008-12-17 沈阳化工研究院 Compound of 2-substituted alkylacrylate and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6251829B1 (en) * 2000-04-18 2001-06-26 Rohm And Haas Company Herbicidal benzoyloxy carboxylates and carboxamides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125337A1 (en) * 2005-05-23 2006-11-30 Sinochem Corporation α, β- AND, Ϝ-UNSATURATED CARBOXYLATES AND THE USE AS HERBICIDIDE THEREOF
CN100443475C (en) * 2005-09-08 2008-12-17 沈阳化工研究院 Compound of 2-substituted alkylacrylate and application thereof
CN100364955C (en) * 2005-09-18 2008-01-30 大连理工大学 2-(dibasic) methyl acrylic ester compound and its use

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