Hypervalent Iodine (III)-induced Intramolecular Cyclization Reaction of Substituted Phenol Ethers with an Alkyl Azido Side-chain: A Novel and Efficient Synthesis of …

Y Kita, M Egi, M Ohtsubo, T Saiki, A Okajima…

Index: Kita, Yasuyuki; Egi, Masahiro; Ohtsubo, Makoto; Saiki, Toyokazu; Okajima, Akiko; Takada, Takeshi; Tohma, Hirofumi Chemical and Pharmaceutical Bulletin, 1999 , vol. 47, # 2 p. 241 - 245

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Citation Number: 23

Abstract

Novel and efficient syntheses of quinone imine ketals (2a-j) and quinone imines (4a-h) from substituted phenol ethers (1a-k) bearing an alkyl azido side-chain using the combination of hypervalent iodine (III) reagent, phenyliodine (III) bis (trifluoroacetate)(PIFA) and trimethylsilyl trifuoromethanesulfonate (TMSOTf), have been developed.

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