Radical-mediated intramolecular [3-atom + 2-atom] addition and the synthesis of (.+-.)-rocaglamide: model studies
摘要:
The cyclopenta[b]benzofuran ring system of the antileukemic natural product rocaglamide can be efficiently prepared by intramolecular [3 + 2] radical mediated addition. The stereochemical relationship that emerges between C(2) and C(3a) upon cyclization is identical with that seen in the natural product.