Literature DB >> 20334423

Silica gel-promoted tandem addition-cyclization reactions of 2-alkynylbenzenamines with isothiocyanates.

Qiuping Ding1, Banpeng Cao, Zhenzhen Zong, Yiyuan Peng.   

Abstract

Tandem addition-cyclization reactions of 2-alkynylbenzenamines with isothiocyanates promoted by silica gel are described. This reaction proceeds smoothly at 80 degrees C under metal- and solvent-free conditions, which provides an efficient and practical route for the generation of 2,4-dihydro-1H-benzo[d][1,3]thiazines. The recovered silica gel could be reused for several times.

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Year:  2010        PMID： 20334423     DOI： 10.1021/cc100012a

Source DB:  PubMed          Journal:  J Comb Chem        ISSN： 1520-4766


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