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The preparation of some thiochroman-3-ones and derivatives

 

作者: Peter D. Clark,   David M. McKinnon,  

 

期刊: Canadian Journal of Chemistry  （NRC Available online 1982）
卷期: Volume 60, issue 3  

页码: 243-248

 

ISSN:0008-4042

 

年代: 1982

 

DOI:10.1139/v82-038

 

出版商: NRC Research Press

 

数据来源: NRC

 

摘要:

The use of 2,3-dihydrobenzo[b]thiophene-2,3-dione as a source of 2-mercaptophenylacetic acid permits a convenient preparation of 2-carboxymethylthiophenylacetic acid or derivatives. These undergo a Dieckmann cyclization to 3-acetoxybenzothiopyrans, which may be hydrolysed to thiochroman-3-ones. The further reactions of some of these are described.

 

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