CA1050547A - Process for the preparation of 1-substituted 2-methyl-tetrahydropyrimidines - Google Patents
Process for the preparation of 1-substituted 2-methyl-tetrahydropyrimidinesInfo
- Publication number
- CA1050547A CA1050547A CA233,556A CA233556A CA1050547A CA 1050547 A CA1050547 A CA 1050547A CA 233556 A CA233556 A CA 233556A CA 1050547 A CA1050547 A CA 1050547A
- Authority
- CA
- Canada
- Prior art keywords
- reaction
- substituted
- methyl
- water
- acetoacetic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- -1 1-substituted 2-methyl-tetrahydropyrimidines Chemical class 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 32
- 230000008569 process Effects 0.000 title claims description 30
- 238000002360 preparation method Methods 0.000 title claims description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- FEJIGNDKURQIRD-UHFFFAOYSA-N 2-methyl-1,2,3,4-tetrahydropyrimidine Chemical class CC1NCC=CN1 FEJIGNDKURQIRD-UHFFFAOYSA-N 0.000 claims description 10
- 150000004729 acetoacetic acid derivatives Chemical class 0.000 claims description 8
- 238000010533 azeotropic distillation Methods 0.000 claims description 7
- 239000011541 reaction mixture Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 239000012024 dehydrating agents Substances 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 239000012442 inert solvent Substances 0.000 claims description 2
- WDJHALXBUFZDSR-UHFFFAOYSA-N Acetoacetic acid Natural products CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 abstract description 12
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical class CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 abstract description 5
- 150000001408 amides Chemical class 0.000 abstract 1
- 150000003230 pyrimidines Chemical class 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- 238000004821 distillation Methods 0.000 description 14
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 13
- 239000002904 solvent Substances 0.000 description 13
- WOWBFOBYOAGEEA-UHFFFAOYSA-N diafenthiuron Chemical compound CC(C)C1=C(NC(=S)NC(C)(C)C)C(C(C)C)=CC(OC=2C=CC=CC=2)=C1 WOWBFOBYOAGEEA-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 238000009835 boiling Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- WJVAPEMLIPHCJB-UHFFFAOYSA-N 1-n-methylpropane-1,2-diamine Chemical compound CNCC(C)N WJVAPEMLIPHCJB-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- NQFQNMMEFUQTEJ-UHFFFAOYSA-N 1,2-dimethyl-1,3-diazinane Chemical compound CC1NCCCN1C NQFQNMMEFUQTEJ-UHFFFAOYSA-N 0.000 description 3
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- HSUODFYJTNEEGW-UHFFFAOYSA-N 1-n-cyclohexylpropane-1,2-diamine Chemical compound CC(N)CNC1CCCCC1 HSUODFYJTNEEGW-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GCPWJFKTWGFEHH-UHFFFAOYSA-N acetoacetamide Chemical class CC(=O)CC(N)=O GCPWJFKTWGFEHH-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 239000013058 crude material Substances 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- OTPDWCMLUKMQNO-UHFFFAOYSA-N 1,2,3,4-tetrahydropyrimidine Chemical compound C1NCC=CN1 OTPDWCMLUKMQNO-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- HUFLWOITARPONH-UHFFFAOYSA-N 1-cyclohexyl-2-methyl-1,3-diazinane Chemical compound CC1NCCCN1C1CCCCC1 HUFLWOITARPONH-UHFFFAOYSA-N 0.000 description 1
- JTXMVXSTHSMVQF-UHFFFAOYSA-N 2-acetyloxyethyl acetate Chemical compound CC(=O)OCCOC(C)=O JTXMVXSTHSMVQF-UHFFFAOYSA-N 0.000 description 1
- HXDLWJWIAHWIKI-UHFFFAOYSA-N 2-hydroxyethyl acetate Chemical compound CC(=O)OCCO HXDLWJWIAHWIKI-UHFFFAOYSA-N 0.000 description 1
- WOFAGNLBCJWEOE-UHFFFAOYSA-N Benzyl acetoacetate Chemical compound CC(=O)CC(=O)OCC1=CC=CC=C1 WOFAGNLBCJWEOE-UHFFFAOYSA-N 0.000 description 1
- REIYHFWZISXFKU-UHFFFAOYSA-N Butyl acetoacetate Chemical compound CCCCOC(=O)CC(C)=O REIYHFWZISXFKU-UHFFFAOYSA-N 0.000 description 1
- 101150039033 Eci2 gene Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WRQNANDWMGAFTP-UHFFFAOYSA-N Methylacetoacetic acid Chemical compound COC(=O)CC(C)=O WRQNANDWMGAFTP-UHFFFAOYSA-N 0.000 description 1
- WRAGCBBWIYQMRF-UHFFFAOYSA-N N-Cyclohexylacetamide Chemical compound CC(=O)NC1CCCCC1 WRAGCBBWIYQMRF-UHFFFAOYSA-N 0.000 description 1
- ATWLCPHWYPSRBQ-UHFFFAOYSA-N N-Methylacetoacetamide Chemical compound CNC(=O)CC(C)=O ATWLCPHWYPSRBQ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- DYRDKSSFIWVSNM-UHFFFAOYSA-N acetoacetanilide Chemical compound CC(=O)CC(=O)NC1=CC=CC=C1 DYRDKSSFIWVSNM-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001409 amidines Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- NGFQXYLWQODUIL-UHFFFAOYSA-N cyclohexylazanide Chemical compound [NH-]C1CCCCC1 NGFQXYLWQODUIL-UHFFFAOYSA-N 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- WASQWSOJHCZDFK-UHFFFAOYSA-N diketene Chemical compound C=C1CC(=O)O1 WASQWSOJHCZDFK-UHFFFAOYSA-N 0.000 description 1
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 1
- 238000007700 distillative separation Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 229960000443 hydrochloric acid Drugs 0.000 description 1
- 235000011167 hydrochloric acid Nutrition 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- RFLHDXQRFPJPRR-UHFFFAOYSA-N n'-benzylpropane-1,3-diamine Chemical compound NCCCNCC1=CC=CC=C1 RFLHDXQRFPJPRR-UHFFFAOYSA-N 0.000 description 1
- ITZPOSYADVYECJ-UHFFFAOYSA-N n'-cyclohexylpropane-1,3-diamine Chemical compound NCCCNC1CCCCC1 ITZPOSYADVYECJ-UHFFFAOYSA-N 0.000 description 1
- DOSWHECVUKBMCG-UHFFFAOYSA-N n'-phenylpropane-1,3-diamine Chemical compound NCCCNC1=CC=CC=C1 DOSWHECVUKBMCG-UHFFFAOYSA-N 0.000 description 1
- JYDHKIHLKJDQLL-UHFFFAOYSA-N n-butyl-3-oxobutanamide Chemical compound CCCCNC(=O)CC(C)=O JYDHKIHLKJDQLL-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 150000002918 oxazolines Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- PFENPVAFZTUOOM-UHFFFAOYSA-N phenyl 3-oxobutanoate Chemical compound CC(=O)CC(=O)OC1=CC=CC=C1 PFENPVAFZTUOOM-UHFFFAOYSA-N 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005326 tetrahydropyrimidines Chemical class 0.000 description 1
- JCMLRUNDSXARRW-UHFFFAOYSA-N trioxouranium Chemical compound O=[U](=O)=O JCMLRUNDSXARRW-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- 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
- C07D239/06—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0237—Amines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0241—Imines or enamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2009—Heterocyclic amines; Salts thereof containing one heterocyclic ring
- C08G18/2027—Heterocyclic amines; Salts thereof containing one heterocyclic ring having two nitrogen atoms in the ring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/34—Other additions, e.g. Monsanto-type carbonylations, addition to 1,2-C=X or 1,2-C-X triplebonds, additions to 1,4-C=C-C=X or 1,4-C=-C-X triple bonds with X, e.g. O, S, NH/N
- B01J2231/348—1,4-additions, e.g. conjugate additions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Plural Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742439550 DE2439550C3 (de) | 1974-08-17 | Verfahren zur Herstellung von 1substituierten 2-Methyl-tetrahydropvrimidinen |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1050547A true CA1050547A (en) | 1979-03-13 |
Family
ID=5923461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA233,556A Expired CA1050547A (en) | 1974-08-17 | 1975-08-15 | Process for the preparation of 1-substituted 2-methyl-tetrahydropyrimidines |
Country Status (12)
Country | Link |
---|---|
US (1) | US4001232A (forum.php) |
JP (1) | JPS604175B2 (forum.php) |
AT (1) | AT342602B (forum.php) |
BE (1) | BE832428A (forum.php) |
CA (1) | CA1050547A (forum.php) |
CH (1) | CH598229A5 (forum.php) |
ES (1) | ES440266A1 (forum.php) |
FR (1) | FR2281928A1 (forum.php) |
GB (1) | GB1464829A (forum.php) |
IT (1) | IT1041201B (forum.php) |
NL (1) | NL7509711A (forum.php) |
SE (1) | SE7509126L (forum.php) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3814761A (en) * | 1972-03-31 | 1974-06-04 | American Home Prod | (2-pyrimidinylthio)alkanoic acids,esters,amides and hydrazides |
US4157972A (en) * | 1974-01-09 | 1979-06-12 | Chevron Research Company | Multipurpose lubricating oil additive and compositions containing same |
US4052397A (en) * | 1976-11-22 | 1977-10-04 | Ciba-Geigy Corporation | Process for the production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxypyrimidines |
US4052396A (en) * | 1976-11-22 | 1977-10-04 | Ciba-Geigy Corporation | Process for the production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxypyrimidines |
US4212843A (en) * | 1978-09-15 | 1980-07-15 | Petrolite Corporation | Δ-2 Tetrahydropyrimidines as corrosion inhibitors |
US4579593A (en) * | 1983-02-04 | 1986-04-01 | Akzona Incorporated | Hexahydropyrimidines as asphalt emulsifiers and emulsions containing hexadropyrimidines |
ES2010668B3 (es) * | 1985-12-13 | 1989-12-01 | Laboratoire L Lafon Soc Anonyme Dite: | Procedimiento de preparacion de derivados de 5-fenil-1,4,5,6-tetrahidropirimidina. |
DE19935325A1 (de) * | 1999-07-28 | 2001-02-01 | Bayer Ag | Lösemittelfreie, raumtemperaturhärtende Reaktivsysteme und ihre Verwendung zur Herstellung von Klebstoffen, Dichtungsmassen, Vergußmassen, Formteilen oder Beschichtungen |
BE1016871A3 (fr) | 2005-12-05 | 2007-08-07 | Fn Herstal Sa | Dispositif ameliore pour la telecommande d'une arme. |
US9085712B2 (en) | 2013-03-14 | 2015-07-21 | Bayer Materialscience Llc | Fast cure aspartate polysiloxane hybrid coating |
-
1975
- 1975-07-22 US US05/598,083 patent/US4001232A/en not_active Expired - Lifetime
- 1975-08-11 IT IT50898/75A patent/IT1041201B/it active
- 1975-08-14 AT AT633275A patent/AT342602B/de not_active IP Right Cessation
- 1975-08-14 NL NL7509711A patent/NL7509711A/xx not_active Application Discontinuation
- 1975-08-14 FR FR7525387A patent/FR2281928A1/fr active Granted
- 1975-08-14 ES ES440266A patent/ES440266A1/es not_active Expired
- 1975-08-14 SE SE7509126A patent/SE7509126L/xx not_active Application Discontinuation
- 1975-08-14 BE BE159199A patent/BE832428A/xx not_active IP Right Cessation
- 1975-08-15 CA CA233,556A patent/CA1050547A/en not_active Expired
- 1975-08-15 CH CH1067875A patent/CH598229A5/xx not_active IP Right Cessation
- 1975-08-15 JP JP50098667A patent/JPS604175B2/ja not_active Expired
- 1975-08-15 GB GB3407675A patent/GB1464829A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4001232A (en) | 1977-01-04 |
FR2281928A1 (fr) | 1976-03-12 |
AT342602B (de) | 1978-04-10 |
SE7509126L (sv) | 1976-02-18 |
DE2439550B2 (de) | 1977-04-21 |
FR2281928B1 (forum.php) | 1978-10-27 |
DE2439550A1 (de) | 1976-02-26 |
JPS5143770A (en) | 1976-04-14 |
CH598229A5 (forum.php) | 1978-04-28 |
NL7509711A (nl) | 1976-02-19 |
JPS604175B2 (ja) | 1985-02-01 |
GB1464829A (en) | 1977-02-16 |
ATA633275A (de) | 1977-08-15 |
BE832428A (fr) | 1976-02-16 |
ES440266A1 (es) | 1977-03-16 |
IT1041201B (it) | 1980-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4528631B2 (ja) | 触媒を複数回再循環させてアルキル(メタ)アクリレートを連続的に製造する方法 | |
CA1050547A (en) | Process for the preparation of 1-substituted 2-methyl-tetrahydropyrimidines | |
US7038058B2 (en) | Continuous preparation of substituted oxazoles | |
US4675442A (en) | Method of making methacrylamides | |
US2457660A (en) | N-tertiary alkyl amides and method for preparing same | |
JPS6125013B2 (forum.php) | ||
US7985870B2 (en) | Process for the manufacture of substituted 2-cyano cinnamic esters | |
TWI519506B (zh) | 連續製備n-烷基(甲基)丙烯醯胺之方法 | |
US3161676A (en) | Preparation of substituted alkyl ureas | |
JPH04288061A (ja) | 環式窒素含有化合物の製法 | |
US5103055A (en) | Water-promoted synthesis of amides from nitriles and alcohols | |
US3954750A (en) | Preparation of hexahydro-1,3,5-trialkanoyl-s-triazines | |
EP0507417B1 (en) | Process for the selective reduction of the 4-halogen in 2,4-dihaloanilines | |
US3020310A (en) | Process for the production of tertiary cyanoethylated amines | |
US4130586A (en) | Process for producing imine compounds | |
US3535332A (en) | Production of vinyl oxazoline esters | |
US20030050479A1 (en) | Process for the preparation of substituted oxazoles | |
US20030050478A1 (en) | Process for the continuous preparation of substituted oxazoles | |
US6900332B2 (en) | Process for the preparation of substituted oxazoles | |
EP1057807A1 (en) | Process for producing nitriles | |
US4997984A (en) | Process for preparation of N-(α-alkoxyethyl)-carboxylic acid amide | |
SU1081159A1 (ru) | Способ получени амидов высших жирных кислот | |
US6730804B1 (en) | Process for preparing cyclopropanecarboxylates of lower alcohols | |
SU1182028A1 (ru) | Способ получени @ -замещенных амидов | |
US5099066A (en) | Synthesis of N-substituted amides by condensation of nitriles with certain organic hydroxyl compounds |