A CONVENIENT METHOD FOR THE SYNTHESIS OF 4-CHLORO-3-ALKENOIC ACID. A NEW USEFUL SYNTHETIC BLOCK FOR 4-OXOALKANOIC AND 4-OXO-2-ALKENOIC ACIDS
作者:Masatoshi Kawashima、Tamotsu Fujisawa
DOI:10.1246/cl.1984.1851
日期:1984.10.5
Easily available material, β-(1-chlorovinyl)-β-propiolactone reacted with organocopper reagents to afford 4-chloro-3-alkenoic acids in high yields. The acids were easily transformed into two kinds of useful carboxylic acids such as 4-oxoalkanoic and 4-oxo-(E)-2-alkenoic acids leading to various natural products.