Stereoselectivities of thermal and Lewis acid catalyzed intramolecular Diels-Alder reactions of internally activated dienophiles to form 5–11 membered rings
作者:Douglas A. Smith、Kunio Sakan、K.H. Houk
DOI:10.1016/s0040-4039(00)85086-8
日期:1986.1
The thermal and Lewisacidcatalyzed intramolecular Diels-Alderreactions of 1 (n = 5–11) have been studied. The catalyzedreactions efficiently form 7–11 membered rings and produce mainly cis adducts. Lewisacids prevent the five-membered ring forming reaction.