Synthesis of 3-and 4-(ω-Phenylalkyl) catechols, the Sap Exuded from a Burmese Lac Tree, Melanorrhoea Usitate

T Miyakoshi, Y Du, J Kumanotani

Index: Miyakoshi, Tetsuo; Du, Yumin; Kumanotani, Ju Bulletin of the Chemical Society of Japan, 1991 , vol. 64, # 3 p. 1054 - 1056

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Citation Number: 4

Abstract

The presence of 3-and 4-(ω-phenylalkyl) catechols in Burmese lac has been confirmed by their synthesis. 3-(ω-Phenylalkyl) veratroles were synthesized by alkylation of ω-phenylalkyl bromide with aryl lithium derived from veratrole. 4-(ω-Phenylalkyl) veratroles were similarly obtained from ω-phenylalkyl bromide and 4-bromoveratrole. Demethylation of 3-and 4-(ω- phenylalkyl) veratroles with boron tribromide gave the corresponding catechols in good ...