Surabhi Mishra

A Systematic Studyand Mechanistic Insights into theAlkynyl-Prins Cyclization–Rearrangement Cascade of 2-(Alkynol)benzoates:Controlled Synthesis of 3-(Furan-3-ylidene) and 3-(Pyran-3-ylidene)phthalides

Abstract We report a controlled and systematic approach for the divergent synthesis of 3-(furan-3-ylidene)- and 3-(pyran-3-ylidene)phthalides via an alkynyl-Prins cyclization of (2-alkynol)benzoates. In contrast to our previous work for the synthesis of [n,5]-oxaspirophthalides (...