Ultrasound promoted greener synthesis of spiro[indole-3,5′-[1,3]oxathiolanes in water

被引:37
作者
Dandia, Anshu [1 ]
Singh, Ruby [1 ]
Bhaskaran, Sumit [1 ]
机构
[1] Univ Rajasthan, Dept Chem, Jaipur 302004, Rajasthan, India
关键词
Spiro-oxirane; Water; Sonication; Spiro-oxathiolane; DERIVATIVES; ANALOGS; MEDIA;
D O I
10.1016/j.ultsonch.2009.08.003
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
An aqueous mediated novel synthesis of substituted 2'amino-4'benzoyl-2'-methyl spiro[indole 3,5'-[1,3]oxathiolane]-2(1H)-ones (2a-f) was carried out from the reaction of spiro [indole-3,2'-oxiranes] (1a-f) with thioacetamide in the presence of LiBr as catalyst. The reaction was carried out under both microwaves and sonication and results were also compared with conventional method. in general, improvement in rate and yields observed when reaction was carried out under sonication as compared to microwave irradiation and conventional method. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:399 / 402
页数:4
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