1,6-Conjugated Addition-Mediated [2+1] Annulation: Approach to Spiro[2.5]octa-4,7-dien-6-one
摘要:
A formal 1,6-conjugated addition-mediated [2+1] annulation to synthesize spiro[2.5]octa-4,7-dien-6-one with p-quinone methides and sulfur ylides has been described. This domino-type process was highly diastereoselective and exhibited good functional group tolerance and scalability without the use of metals and bases.
1,6-Conjugated Addition-Mediated [2+1] Annulation: Approach to Spiro[2.5]octa-4,7-dien-6-one
作者:Zhenbo Yuan、Xinxin Fang、Xuanyi Li、Jie Wu、Hequan Yao、Aijun Lin
DOI:10.1021/acs.joc.5b01793
日期:2015.11.6
A formal 1,6-conjugated addition-mediated [2+1] annulation to synthesize spiro[2.5]octa-4,7-dien-6-one with p-quinone methides and sulfur ylides has been described. This domino-type process was highly diastereoselective and exhibited good functional group tolerance and scalability without the use of metals and bases.
Synthesis of spiro[2.5]octa-4,7-dien-6-one with consecutive quaternary centers <i>via</i> 1,6-conjugate addition induced dearomatization of <i>para</i>-quinone methides
作者:Kuo Gai、Xinxin Fang、Xuanyi Li、Jinyi Xu、Xiaoming Wu、Aijun Lin、Hequan Yao
DOI:10.1039/c5cc06287j
日期:——
An efficient one-pot approach for the synthesis of spiro[2.5]octa-4,7-dien-6-ones by employing para-quinone methides has been developed. The reaction proceeded smoothly in high yields under mild conditions without the use of...