A novel one-flask cyclopropanation and vinylcyclopropanation method for .alpha.-enones. Copper(I)-induced .gamma.-thiophenoxide removal from conjugate adducts
作者:Theodore Cohen、Michael Myers
DOI:10.1021/jo00237a053
日期:1988.1
Cohen Theodore, Shook Craig, Thiruvazhi Mohan, Tetrahedron Lett, 35 (1994) N 33, S 6041-6042
作者:Cohen Theodore, Shook Craig, Thiruvazhi Mohan
DOI:——
日期:——
COHEN, TH.;MYERS, M., J. ORG. CHEM., 53,(1988) N 2, 457-460
作者:COHEN, TH.、MYERS, M.
DOI:——
日期:——
Stereocontrolled double ring expansion of fused allylidenecyclopropanes. A novel route to hydroazulenes and other fused bicyclic systems
作者:Craig A. Shook、Matthew L. Romberger、Sang Hun Jung、Manchao Xiao、James P. Sherbine、Birong Zhang、Fu Tyan Lin、Theodore Cohen
DOI:10.1021/ja00076a037
日期:1993.11
A variety of 1-(phenylthio)-1-(trimethylsilyl)cyclopropanes, fused to five-, six-, and seven-membered rings have been prepared by several procedures and reductively lithiated by means of aromatic radical anions. The resulting 1-lithio-1-(trimethylsilyl)cyclopropanes have been treated in most cases with α,β-unsaturated aldehydes, followed by potassium tert-butoxide to yield allylidenecyclopropanes.