| 摘要 |
1424170 Alkynyl cyclopropanecarboxylic acid esters SUMITOMO CHEMICAL CO Ltd 18 April 1974 [20 April 1973 24 May 1973 4 June 1973] 17127/74 Heading C2C The invention comprises compounds of the formula wherein R 1 is a hydrogen or halogen atom, or a C 1-5 alkyl, optionally substituted C 2-5 alkenyl, C 2-5 alkynyl, C 1-4 alkoxy-C 1-4 alkyl, C 1-4 alkylthio-C 1-4 alkyl, aryl, aryl-C 1-4 alkyl, aryloxy-C 1-4 alkyl or arylthio-C 1-4 alkyl group, an optionally substituted furyl group, an optionally substituted thienyl group, an optionally substituted furfuryl group, an optionally substituted thenyl group, an optionally substituted cyclo-C 3-6 alkyl group, or an optionally substituted cyclo-C 3-6 alkenyl group which said cyclo-C 3-6 alkyl and cyclo-C 3-6 alkenyl groups each optionally contain a hetero atom in the nucleus thereof; each of R 2 and R 3 is independently a hydrogen or halogen atom, or a C 1-5 alkyl, C 2-5 alkenyl, C 2-5 alkynyl, aryl, or aryl- C 1-4 alkyl group or R 2 and R 3 may together represent a carbon-carbon bond; or R 1 and R 3 may be joined to form a polymethylene chain optionally containing an oxygen or a sulphur atom in the chain, or R 1 and R 2 may be joined to form a polymethylene chain optionally containing an oxygen or a sulphur atom in the chain; R 4 is a hydrogen atom or a methyl group; R 5 is, when R 4 is a hydrogen atom, a hydrogen atom, or a methyl, vinyl, 1-propenyl-2-methyl- 1-propenyl, 2-methoxymethyl-1-propenyl, 2- methoxy - carbonyl - 1 - propenyl, 2,2 - dichlorovinyl, butadienyl, 2-methyl - butadienyl or cyclopentylidenemethyl, and R 5 represents methyl when R 4 is methyl; and R 6 and R 7 are hydrogen or methyl. The compounds are prepared by reacting a compound of the formula where A is hydroxy, halogen or arylsulphoxy with a compound of the formula or a reactive derivative thereof. |
