摘要:
A 3-hydroxy-3-(2-thienyl)propionamide compound represented by the following general formula (1), which is useful as an intermediate for medicines, etc.; and a process for industrially producing at low cost an optically active 3-amino-1-(2-thienyl)-1-propanol compound from the propionamide compound in a high reaction yield and high optical yield. The process comprises subjecting a ß-ketocarbonyl compound having a thiophene ring to asymmetric reduction either in the presence of a catalyst comprising a compound of a Group 8 or 9 metal of the Periodic Table (e.g., ruthenium compound) and an asymmetric ligand represented by a specific optically active diamine derivative (e.g., diphenylethylenediamine derivative) or using cells of a microorganism, a product of treatment of the cells, etc. According to need, the product of the asymmetric reduction is subjected to ester group amidation and then amide group reduction. Thus, a 3-amino-1-(2-thienyl)-1-propanol compound is obtained.
摘要:
Methoxyiminoacetamide derivatives represented by general formula (I), exhibiting negative specific rotations in chloroform, and having an extremely excellent pesticidal activity, wherein Ar is aryl or heteroaryl; Y is hydrogen, halogeno, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, C1-C4 alkylthio, C2-C6 alkynyloxy, cyano, nitro or aryl; and n is an integer of 1 to 3.