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Lewis acid promoted regio- and stereoselective hetero nucleophilic addition to a piperidinyl aziridine. Synthesis of trans 3-amino-4-substituted piperidines

โœ Scribed by X.Eric Hu


Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
117 KB
Volume
43
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


A piperidinyl aziridine underwent alcoholic nucleophilic addition with alcohols to result in corresponding trans 3-amino-4-substituted piperidines. The addition reaction was catalyzed by BF 3 โ€ขOEt 2 in excellent regio-and stereoselectivity. The application of this method was extended to the addition of thiols, acids and halogens with sustained regio-and stereoselectivity.


๐Ÿ“œ SIMILAR VOLUMES


Regio- and stereo-controlled copper orga
โœ X.Eric Hu; Nick K Kim; Benoit Ledoussal; Anny-Odile Colson ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 134 KB

Piperidinyl aziridine N-phosphonate underwent ring opening in Grignard addition catalyzed by a copper reagent to yield trans 3-amino-4-alkyl-piperidines. The nucleophilic addition occurred trans to the aziridine group and regioselectively at C-4 position of the piperidine ring. The high regioselecti