Novel N-alkyl substituted piperazines have been discovered, which are useful as insecticides or fungicides. Such compounds are of Formula (I)
wherein X, Y, R1 and R2 are as defined herein.
Novel N-alkyl substituted piperazines have been discovered, which are useful as insecticides or fungicides. Such compounds are of Formula (I)
wherein X, Y, R1 and R2 are as defined herein.
Novel N-alkyl substituted piperazines have been discovered, which are useful as insecticides or fungicides. Such compounds are of Formula (I)
wherein X, Y, R1 and R2 are as defined herein.
Dialkylaminoacetonitrile Derivatives as Amide Synthons. A One-Pot Preparation of Heteroaryl Amides via a Strategy of Sequential S<sub>N</sub>Ar Substitution and Oxidation
作者:Zhongxing Zhang、Zhiwei Yin、John F. Kadow、Nicholas A. Meanwell、Tao Wang
DOI:10.1021/jo030233j
日期:2004.2.1
Dialkylamino acetonitrile derivatives were utilized as alternative to cyanohydrin synthons for preparation of the corresponding heteroaryl dialkyl amides via a strategy of sequential base-mediated coupling and oxidation. The most advantageous oxidant, NiO2-H2O, can readily oxidize 2-substituted aminoacetonitriles to the corresponding amides under both basic and neutral conditions by forming cyanohydrins in situ.
BUDAI Z.; MEZEI T.; LAY A., ACTA CHIM. ACAD. SCI. HUNG., 1980, 105, NO 4, 241-246