Kibriya Golam, Mondal Susmita, Hajra Alakananda
Department of Chemistry , Visva-Bharati (A Central University) , Santiniketan 731235 , India.
Org Lett. 2018 Dec 7;20(23):7740-7743. doi: 10.1021/acs.orglett.8b03549. Epub 2018 Nov 28.
A metal-free visible-light-promoted oxidative coupling between thiols and arylhydrazines has been developed to afford diaryl sulfides using a catalytic amount of rose bengal as photocatalyst under aerobic conditions. A library of unsymmetrical diaryl sulfides with broad functionalities was synthesized in good yields at room temperature. The present methodology is also applicable to benzo[ d]thiazole-2-thiols, benzo[ d]oxazole-2-thiol, 1 H-benzo[ d]imidazole-2-thiols, and 1 H-imidazole-2-thiol.
已开发出一种无金属可见光促进的硫醇与芳基肼之间的氧化偶联反应，在有氧条件下使用催化量的玫瑰红作为光催化剂来制备二芳基硫醚。在室温下以良好的产率合成了一系列具有广泛官能团的不对称二芳基硫醚。本方法也适用于苯并[d]噻唑-2-硫醇、苯并[d]恶唑-2-硫醇、1H-苯并[d]咪唑-2-硫醇和1H-咪唑-2-硫醇。
