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Synthesis of 3-hydroxy and 3-amino 2-substitutedN-heterocyclesvia enamine oxidation and aziridination

✍ Scribed by Mihiro Sunose; Kirsty M. Anderson; A. Guy Orpen; Timothy Gallagher; Simon J.F. Macdonald


Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
257 KB
Volume
39
Category
Article
ISSN
0040-4039

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✦ Synopsis


Reaction of the N-sulfonyl heterocyc/ic enamines (la/b) under asymmetric epoxidation and dihydroxylation reaction conditions leads to 2,3-dihydroxypyrrolidines and piperidines, (2a) and (2b). Only diols are observed undcr aminohydroxylation conditions, but Mn-mediated aziridination of (la) provides a route to the 3-amino-2-methoxypyrrolidine derivatives ( 6)and ( 7).


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ChemInform Abstract: Synthesis of 3-Hydr
✍ M. SUNOSE; K. M. ANDERSON; A. G. ORPEN; T. GALLAGHER; S. J. F. MACDONALD πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 29 KB πŸ‘ 1 views

Synthesis of 3-Hydroxy and 3-Amino 2-Substituted N-Heterocycles via Enamine Oxidation and Aziridination. -Usual asymmetric epoxidation of the N-sulfonyl heterocyclic enamines (I) followed by methanolysis results in formation of 2,3-dihydroxy derivatives. Only diol derivatives are also obtained unde