Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5213080 | Tetrahedron | 2016 | 10 Pages |
Abstract
A convenient and robust stereocontrolled procedure has been developed for the synthesis of novel trifluoromethyl-containing piperidine and azepane β-amino ester stereoisomers. The synthesis started from readily available unsaturated bicyclic β-lactams and was based on oxidative cleavage of the ring CC double bond followed by ring closure of the diformyl intermediates in the presence of 2,2,2-trifluoroethylamine hydrochloride through reductive amination. The synthetic procedure has efficiently been extended towards the synthesis of mono- and difluorinated analogs.
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Related Topics
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Authors
Renáta Anita Ábrahámi, Loránd Kiss, Pablo Barrio, Ferenc Fülöp,