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Communication | Special issue | Vol 5, No. 1, 1976, pp.207-211
Published online, 1st January, 1970
DOI: 10.3987/S-1976-01-0207
Formation of a p-Quinone Methide in the Presence of Methanol

Osamu Hoshino, Hiroshi Hara, Masashi Ogawa, and Bunsuke Umezawa*

*Faculty of Pharmaceutical Sciences, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278-8510, Japan

Abstract

(±)-4β-Acetoxythaliporphine (IV) reacted readily with methanol to give (±)-4β-methoxythaliporphine (V). Consequently, a facile formation of p-quinone methide (XI) as a key intermediate was deduced.