Dynamic Covalent Chemistry of Disulfides Offers a Highly Efficient Synthesis of Diverse Benzofused Nitrogen−Sulfur Heterocycles in One Pot
作者:Ning Zhu、Fa Zhang、Gang Liu
DOI:10.1021/cc100042v
日期:2010.7.12
The thiol-disulfide dynamic interchange reaction mediated by 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) was extensively studied. By this synthetic method sulfides can be prepared successfully within seconds in high yields at room temperature from stable and readily available disulfides and an alkylating agent. The method was further demonstrated to efficiently produce benzofused nitrogen-sulfur heterocycles with high skeletal diversity in a one-pot process.
Efficient Synthesis of Benzothiazolone Derivatives by a Domino Reaction of Disulfide and COS under Mild Conditions
efficient method for preparing benzothiazolone derivatives was developed by a domino coupling reaction between the disulfide and COS in the present of NaOH. Notably, the C=O of COS was converted into benzothiazolone by carbonylation reaction and the sulfur of COS was transformed into sulfur and sulfide after cleaving the S–S bond undermildconditions. This efficient synthetic methodology could provide