Concise, efficient new synthesis of pipercide, an insecticidal unsaturated amide from Piper nigrum, and related compounds
作者:George M. Strunz、Heather Finlay
DOI:10.1016/s0040-4020(01)89414-x
日期:1994.1
Pipercide and piperolein A, unsaturated amides from Piper nigrum, were prepared in overall yields of 21% and 35% respectively, by a new, short and efficient strategy, in which the key step was the aldol-Grob-type fragmentation sequence recently reported by Sakai et al.. (but using propylene- rather than ethylene glycol). The nor-homologues of these natural products were similarly prepared. In the final