Formal [3 + 2] Cycloadditions of Donor−Acceptor Cyclopropanes and Nitriles
摘要:
Donor-acceptor cyclopropanes activated with Me3SiOTf cleave to reactive intermediates that can be efficiently intercepted by nitriles in a formal [3 + 2] dipolar cycloaddition reaction. Aliphatic, aromatic, and alpha,beta-unsaturated nitriles are excellent reaction partners, giving synthetically useful 2H-3,4-dihydropyrrole cycloaddition products in high yield.
Formal [3 + 2] Cycloadditions of Donor−Acceptor Cyclopropanes and Nitriles
作者:Ming Yu、Brian L. Pagenkopf
DOI:10.1021/ja029716f
日期:2003.7.1
Donor-acceptor cyclopropanes activated with Me3SiOTf cleave to reactive intermediates that can be efficiently intercepted by nitriles in a formal [3 + 2] dipolar cycloaddition reaction. Aliphatic, aromatic, and alpha,beta-unsaturated nitriles are excellent reaction partners, giving synthetically useful 2H-3,4-dihydropyrrole cycloaddition products in high yield.