Thanh Binh Nguyen, Karine Pasturaud, Ludmila Ermolenko, Ali Al-Mourabit
Organic letters 2015 May 15A wide range of 2-aroylbenzothiazoles 3 including some pharmacologically relevant derivatives can be obtained in high yields by simply heating o-halonitrobenzenes 1, acetophenones 2, elemental sulfur, and N-methylmorpholine. This three-component nitro methyl coupling was found to occur in an excellent atom-, step-, and redox-efficient manner in which elemental sulfur played the role of nucleophile building block and redox moderating agent to fulfill electronic requirements of the global reaction.
Thanh Binh Nguyen, Karine Pasturaud, Ludmila Ermolenko, Ali Al-Mourabit. Concise Access to 2-Aroylbenzothiazoles by Redox Condensation Reaction between o-Halonitrobenzenes, Acetophenones, and Elemental Sulfur. Organic letters. 2015 May 15;17(10):2562-5
PMID: 25929738
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