作者:Patrick G. McCaw、Naomi M. Buckley、Kevin S. Eccles、Simon E. Lawrence、Anita R. Maguire、Stuart G. Collins
DOI:10.1021/acs.joc.7b00172
日期:2017.4.7
Diazo transfer to β-keto sulfoxides to form stable isolable α-diazo-β-keto sulfoxides has been achieved for the first time. Both monocyclic and benzofused ketone derived β-keto sulfoxides were successfully explored as substrates for diazo transfer. Use of continuous flow leads to isolation of the desired compounds in enhanced yields relative to standard batch conditions, with short reaction times,
重氮首次转移至β-酮亚砜以形成稳定的可分离的α-重氮-β-酮亚砜。单环和苯并稠合的酮衍生的β-酮亚砜均已成功地用作重氮转移的底物。相对于标准批次条件,连续流动的使用导致所需化合物的分离,产率提高,反应时间短,安全性提高,并且具有扩大规模的潜力。