O-(. alpha.-Benzotriazolylalkyl) phenols: Novel Precursors for the Preparation of Ortho-Substituted Phenols via Intermediate 0-Quinone Methides

AR Katritzky, Z Zhang, X Lan…

Index: Katritzky, Alan R.; Zhang, Zhongxing; Lan, Xiangfu; Lang, Hengyaun Journal of Organic Chemistry, 1994 , vol. 59, # 7 p. 1900 - 1903

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Citation Number: 30

Abstract

Introduction oQuinone methides are reactive intermediates frequently used in organic synthesis. 13 They have been generated by thermal elimination of phenol Mannich bases (1; Y= NRZ),~ o-(a-hydroxalky1)-(1; Y= OH) or o-(a-methoxyalky1) phenols (1; Y= OR),'-14 by dehydrohalogenation of o-(chloromethy1) phenols (1; Y= C1), 16J6 by desilylation of disilylated o-hydroxybenzyl alcohols (1; Y= OSiMe3), 17 and by oxidation of o- ...