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. 38092-89-6, Name is 8-Chloroazatadine, molecular formula is C20H21ClN2. In an article, author is Myeong, In-Soo,once mentioned of 38092-89-6, Formula: C20H21ClN2.
Asymmetric total syntheses of (+)-2,5-dideoxy-2,5-imino-D-glucitol [(+)-DGDP] and (-)-1-deoxymannojirimycin [(-)-DMJ] via an extended chiral 1,3-oxazine
The asymmetric total syntheses of (+)-2,5-dideoxy-2,5-imino-D-glucitol [(+)-DGDP] I and (-)-1-deoxymannojirimycin [(-)-DMJ] 2 were achieved using an extended chiral 1,3-oxazine. The key synthetic strategies included extension of the chirality of anti,syn-oxazine 3 using diastereoselective dihydroxylation, and piperidine and pyrrolidine ring formation. Starting from readily available anti,syn-oxazine 3, (+)-DGDP 1 was synthesized in 5 steps with 31.6% overall yield and (-)-DMJ 2 was synthesized in 4 steps with 60.6% overall yield. (C) 2018 Elsevier Ltd. All rights reserved.
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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem