Oxidation of Propargylic Alcohols with a 2??Quinoxalinol Salen Copper (II) Complex and tert??Butyl Hydroperoxide

KC Weerasiri, AEV Gorden

Index: Weerasiri, Kushan C.; Gorden, Anne E. V. European Journal of Organic Chemistry, 2013 , # 8 p. 1546 - 1550

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Citation Number: 7

Abstract

Abstract The copper (II) complex of 2-quinoxalinol salen (salqu) is an efficient catalyst for the selective oxidation of propargylic alcohols to yield the corresponding α, β-acetylenic carbonyl compounds when used in combination with the oxidant tert-butyl hydroperoxide (TBHP). Excellent yields (up to 99%) are achieved for a variety of propargylic alcohols within 1 h of reaction time. The (salqu) copper (II) complex with TBHP can be used with ...