期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 364, 期 24, 页码 4310-4315出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.202200975
关键词
indoles; chemoselectivity; regioselectivity; C-H functionalization; metal-free
资金
- National Natural Science Foundation of China
- [NSF 2144715]
- [2144716]
Controllable chemoselectivity and regioselectivity synthesis of 3-sulfinylated, 3-sulfenylated and 2-sulfonylated indoles via direct C-H functionalization are achieved under metal-free conditions. The synthesis of 3-arylsulfinylindoles in high yields from a sulfone substrate in water without additives is particularly noteworthy. The use of p-Toluenesulfonyl cyanide (TsCN) as a new sulfur reagent through the cleavage of S-C and S=O bonds is also demonstrated.
Controllable chemoselectivity and regioselectivity synthesis of 3-sulfinylated, 3-sulfenylated and 2-sulfonylated indoles via direct C-H functionalization are realized under metal-free conditions. In particular, the synthesis of 3-arylsulfinylindoles in high yields from a sulfone substrate in water without additives is reported. The process displays excellent functional groups compatibility. p-Toluenesulfonyl cyanide (TsCN) possesses a hexavalent sulfonyl group, as an odorless and easy-to-handle solid, which has been used as a new sulfur reagent through the cleavage of S-C and S=O bonds in our work.
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