期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 359, 期 17, 页码 2999-3004出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201700525
关键词
aryl/alkyl halides; photoinduced reaction; silyl enolates; sulfonylative coupling; sulfur dioxide
资金
- National Natural Science Foundation of China [21672037, 21532001]
A photoinduced sulfonylative coupling of aryl/alkyl halides, DABCO center dot(SO2)(2) (1,4-diazabicyclo[2.2.2] octane-sulfur dioxide), and silyl enolates under metal-free conditions has been developed, giving rise to beta-keto sulfones in good yields. This transformation proceeds smoothly at room temperature under ultraviolet irradiation with good tolerance of various functional groups. Aryl iodides/bromides and alkyl halides are all good substrates in the sulfonylative reaction. A plausible mechanism is proposed, which proceeds through a radical process under photoinduced conditions.
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