Diels-Alder reactions of 2-bromo-2-cycloalkenones. A convenient approach to the doubly cisoid fully conjugated dienone system
作者:Hsing-Jang Liu、Kak-Shan Shia
DOI:10.1016/0040-4039(95)00151-2
日期:1995.3
Under stannic chloride catalysis, 2-bromo-2-cycloalkenones 1 and 2 were found to undergo Diels-Alderreaction with dienes to give adducts in high yields. Subsequent treatment of the adducts with 1,8-diazabicyclo[5.4.0]undec-7-ene gave the corresponding doublycisoidfullyconjugateddienones.