A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Formula: C10H11NO2, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 16251-45-9, Name is (4S,5R)-4-Methyl-5-phenyloxazolidin-2-one, molecular formula is C10H11NO2. In an article, author is Jacobsen, Eric,once mentioned of 16251-45-9.
A mixed anhydride approach to the preparation of sulfinate esters and allylic sulfones: Trimethylacetic p-toluenesulfinic anhydride
A reagent combination of toluenesulfinic acid and trimethylacetyl chloride affords a putative trimethylacetic p-toluenesulfinic anhydride. This reagent has been used to prepare a series of sulfinate esters from primary and secondary alcohols. In addition, the reagent was used to convert Baylis-Hillman substrates into allylic sulfones. Attempts to use the reagent to convert amines to sulfinamides were unsuccessful. In contrast, the use of 2-pyrrolidinone afforded N-p-toluenesulfinyl pyrrolidinone in 64% yield. The use of a chiral 4-benzy1-1,3-oxazolidinone or 4-benzyl-1,3-oxazolidine-2-thione led to the isolation of S-p-tolyl ptoluenethiosulfonate. (C) 2017 Elsevier Ltd. All rights reserved.
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Reference:
Oxazolidine – Wikipedia,
,Oxazolidine | C3H7NO – PubChem