Liu, Caiyan published the artcileNon-directed copper-catalyzed regioselective C-H sulfonylation of phenothiazines, Synthetic Route of 10543-42-7, the publication is Organic & Biomolecular Chemistry (2019), 17(20), 5009-5013, database is CAplus and MEDLINE.
A simple and general method for the synthesis of phenothiazinyl sulfones I [R = n-Bu, Ph, Bn, etc.; R1 = cyclopropyl, 4-MeC6H4, 2-naphthyl, etc.; R2 = H, SMe, Cl; R3 = H, Cl] was developed via copper-catalyzed regioselective C-H sulfonylation of phenothiazines with sulfonyl chlorides. The broad scope of aryl/alkyl sulfonyl chlorides was applicable to produce C3 sulfonylation products of phenothiazines in moderate to good yields. The further transformation of the sulfonylation products was successful, which afforded valuable polyheterocycles.
Organic & Biomolecular Chemistry published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, Synthetic Route of 10543-42-7.
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