Tetrahedron Letters

[Omim][BF 4], a green and recyclable ionic liquid medium for the one-pot chemoselective synthesis of benzoxazinones

A Sharifi, M Barazandeh, MS Abaee, M Mirzaei

Index: Sharifi, Ali; Barazandeh, Mehdi; Saeed Abaee; Mirzaei, Mojtaba Tetrahedron Letters, 2010 , vol. 51, # 14 p. 1852 - 1855

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Citation Number: 21

Abstract

An efficient procedure for the one-pot chemoselective synthesis of 2H-benzo [b][1, 4] oxazin- 3 (4H)-one derivatives from their corresponding o-aminophenols is developed using DBU in the ionic liquid [omim][BF4]. Upon completion of the reaction and separation of the product, the ionic liquid is recovered and successfully reused over nine recycles without any noticeable loss of performance.