A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 92-30-8, Name is 2-(Trifluoromethyl)-10H-phenothiazine, molecular formula is C13H8F3NS. In an article, author is Li, Yuewen,once mentioned of 92-30-8, Category: thiazines.
N-Radical Initiated Aminosulfonylation of Unactivated C(sp(3))-H Bond through Insertion of Sulfur Dioxide
N-Radical initiated aminosulfonylation of unactivated C(sp(3))-H bond through insertion of sulfur dioxide in the presence of visible light is reported. O-Aryl oximes react with DABCO center dot(SO2)(2) smoothly at room temperature under blue LED irradiation without any metals or photoredox catalysts, generating diverse 5,6-dihydro-4H-1,2-thiazine 1,1-dioxides in good yield. Additionally, this approach can be extended to the synthesis of 1H-benzo[d][1,2]thiazine 2,2-dioxides. During the reaction process, an N-radical is initiated by the treatment of O-aryl oximes with DABC center dot(SO2)(2) under visible-light irradiation. It is followed by aminosulfonylation of a nearby C(sp(3)) H bond through 1,5-hydrogen atom transfer with accompanying insertion of sulfur dioxide to provide 1,2-thiazine 1,1-dioxide derivatives.
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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem