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. 57-11-4, Name is Stearic acid, molecular formula is C18H36O2. In an article, author is YOSHII, K,once mentioned of 57-11-4, Recommanded Product: 57-11-4.
BETA-RIBONUCLEOSIDES AND ALPHA-ARABINONUCLEOSIDES CONTAINING THE 1,2-BENZISOXAZOLE AND 1,2-BENZISOTHIAZOLE RINGS
The reaction of the silylated base of 1,2-benzisoxazol-3(2H)-one (1) and its 7-methyl derivative 5 and 5-methyl-1,2-benzisothiazol-3(2H)-one (9), respectively, with 1-O-acetyl-2,3,5-tri-O-benzoyl-beta-D-ribofuranose followed by basic deprotection gave the corresponding beta-D-ribonucleosides, and the silylated base of 1, when treated with 1-O-acetyl-2,3,5-tri-O-benzoyl-alpha-D-arabinofuranose in the presence of stannic chloride, afforded the corresponding alpha-arabinonucleoside. Structural proofs of these nucleosides are provided from elemental analyses and H-1 and C-13 nmr spectra.
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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics