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. 84793-24-8, Name is Ethyl (S)-2-[(S)-4-Methyl-2,5-dioxo-3-oxazolidinyl]-4-phenylbutanoate, molecular formula is C16H19NO5. In an article, author is Gondela, Andrzej,once mentioned of 84793-24-8, COA of Formula: C16H19NO5.
Convenient Synthesis of Pyrimidine acyclo-2,2 ‘-anhydronucleosides and their Exploitation Toward Selected N-nucleophiles
A new method of the synthesis of 2-(hydroxymethyl-2H-oxazolo[3,2-a]pyrimidin-7(3H)-ones, commonly known as pyrimidine acyclo-2,2′-anhydronucleosides, was developed. Under the Mitsunobu reaction conditions, 5-substituted 1-(3′-alkoxy-2′-hydroxypropyl)uracil derivatives underwent an intramolecular cyclization to the corresponding 2-alkoxymethyl-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-7-ones. The various synthetic methods have been demonstrated in the reactions with several N-nucleophiles. Importantly from the mechanistic point of view, in the case of 6-bromo-2-(hydroxymethyl)-2H-oxazolo[3,2-a]pyrimidin-7(3H)-one treated with chiral isocyanate the inversion of configuration at the C-4’ carbon atom accompanied by the oxazolidine ring opening was observed.
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Reference:
Oxazolidine – Wikipedia,
,Oxazolidine | C3H7NO – PubChem