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. 93-02-7, Name is 2,5-Dimethoxybenzaldehyde, molecular formula is C9H10O3. In an article, author is Yang, Zhanhui,once mentioned of 93-02-7, COA of Formula: C9H10O3.
Synthesis of benzo-gamma-sultams via the Rh-catalyzed aromatic C-H functionalization of diazosulfonamides
An efficient synthesis of 1-aryl-benzo-gamma-sultams, 1-aryl-1,3-dihydrobenzo[c] isothiazole-2,2-dioxides, was achieved in 65-99% yields via the Rh-catalyzed intramolecular aromatic C-H functionalization of N, N-diaryl diazosulfonamides with 0.5 mol% Rh-2(oct)(4) as the catalyst.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com