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. 2107-69-9, Name is 5,6-Dimethoxy-2,3-dihydro-1H-inden-1-one, molecular formula is C11H12O3. In an article, author is Zakharova, VM,once mentioned of 2107-69-9, Safety of 5,6-Dimethoxy-2,3-dihydro-1H-inden-1-one.
Fluorinated diazo diketones in rhodium(II)-catalyzed reactions with sultams: Chemoselective O-functionalization of amide carbonyl groups
Rhodium(II)-catalyzed decomposition of fluorinated diazo diketones in the presence of isothiazole-3(2H)-one 1,1-dioxides offers a chemoselective and useful tool for O-functionalization of their C=O groups by interaction with transient fluorine-containing Rh-II-diketocarbenoids. The resulting O-alkylimidates of isothiazole 1,1-dioxides, bearing (trifluoromethyl)acetyl groups, easily react with traces of H2O giving rise to stable hydrates of the perfluoroacetyl groups. No O -> N isomerization of O-alkylimidates (similar to the Lander-Chapman rearrangement) was observed under the reaction conditions studied.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com