Selective S-arylation of 2-oxazolidinethiones and selective N-arylation of 2-benzoxazolinones/2-benzimidazolinones
作者:Chu-Han Sun、Yi Lu、Qing Zhang、Rong Lu、Lin-Qing Bao、Mei-Hua Shen、Hua-Dong Xu
DOI:10.1039/c7ob00040e
日期:——
There exist three possible patterns for the reaction of cyclic 2-oxazolidinethione and 2-benzoxazolidinethione with arynes, namely (a) S-arylation, (b) N-arylation, and (c) aryne insertion into the thiocarbonyl group (CS). Our studies demonstrate that S-arylation wins out affording S-aryl dihydrooxazoles. In contrast, for related reactions of cyclic 2-benzoxazolinone and 2-benzimidazolinone with arynes
环状2-恶唑烷硫酮和2-苯并恶唑烷硫酮与芳烃的反应存在三种可能的模式,即(a)S-芳基化,(b)N-芳基化,和(c)芳基插入硫代羰基(CS )中。我们的研究表明,小号-arylation胜出,得到小号芳dihydrooxazoles。相反,对于相关的反应的环状2-苯并恶唑啉酮和2-苯并咪唑啉酮与arynes,发现Ñ -arylation outcompetes ö -arylation和芳炔插入到C O基团,得到ñ -芳基2-benzoxazolinones和Ñ -芳基2 -苯并咪唑啉酮。