Lewis base-catalyzed reactions of cyclopropenones: novel synthesis of mono- or multi-substituted allenic esters.
The reactions of cyclopropenones with nucleophiles (H2O or methanol) could be catalyzed by nitrogen-containing Lewis bases or phosphorus-containing Lewis bases, affording the corresponding mono- or multi-substituted allenic esters in moderate to excellent yields.
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China. weiyin@sioc.ac.cn mshi@sioc.ac.cn.
Yuan-Liang
YL
Yang
Zhen
Z
Zhang
Xiao-Nan
XN
Zhang
De
D
Wang
Yin
Y
Wei
Min
M
Shi