A convenient synthesis of perfluoroalkylated enamines and vinyl phosphonates
作者:Wenbiao Cen、Yuhua Ni、Yanchang Shen
DOI:10.1016/0022-1139(95)03233-4
日期:1995.8
reaction of fluoroalkynes with ammonia and benzylamine gave perfluoroalkylated enamines predominantly as the Z isomer, which were hydrogenated with palladium on carbon to afford perfluoroalkylated β-amino acids in good yield. The reaction of fluoroalkynes with diethyl phosphite afforded perfluoroalkylated vinyl phosphonates in moderate yield.
6-trisubstituted phenyl)uracil derivatives has been synthesised and assayed for insecticidal/acaricidalactivity. The assay indicated certain requirements for optimal insecticidalactivity, which can be summarised as follows: (a) the substituents on the phenyl ring should possess hydrophobicity and electron-withdrawing properties, and the sum of their volumes determines the level of activity; (b) the substituent