Aromatic ring synthesis by 1,3-Michael-Claisen annulation: Formation of dihydrobenzofurans and tetrahydrochromans from α-methylene γ-butyrolactone and δ-valerolactone
摘要:
Substituted dihydrobenzofurans and tetrahydrochromans have been prepared from respectively alpha-methylene-gamma-butyrolactone: and delta-valerolactone via a 1,3-Michael-Claisen reaction from two 3-carbon units, 1,1-bis-(methylthio)-2-propanone or butanone, and an alpha-methylene lactone.
Aromatic ring synthesis by 1,3-Michael-Claisen annulation: Formation of dihydrobenzofurans and tetrahydrochromans from α-methylene γ-butyrolactone and δ-valerolactone
作者:Guy Solladié、Dominique Boeffel、Jean Maignan
DOI:10.1016/0040-4020(95)00531-c
日期:1995.8
Substituted dihydrobenzofurans and tetrahydrochromans have been prepared from respectively alpha-methylene-gamma-butyrolactone: and delta-valerolactone via a 1,3-Michael-Claisen reaction from two 3-carbon units, 1,1-bis-(methylthio)-2-propanone or butanone, and an alpha-methylene lactone.