𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Simple synthetic route to polyhydroxylated pyrrolidines and piperidines

✍ Scribed by Sang Gyeong Lee; Yong-Jin Yoon; Ki Hun Park


Publisher
Journal of Heterocyclic Chemistry
Year
1998
Tongue
English
Weight
368 KB
Volume
35
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

A short and simple synthetic route to polyhydroxylated piperidines and pyrrolidines were described with D‐glucurono‐δ‐lactone as chiral educt. Key reaction steps included selective cleavage of terminal isopropylidene group of compound 12 with Dowex 50W‐X8 resin (H^+^ form), regioselective ring opening of epoxide 16 and intramolecular nucleophilic amination of compound 14 and 18.


πŸ“œ SIMILAR VOLUMES


Electrophile-induced cyclization of Ξ³,Ξ΄-
✍ Norbert de Kimpe; Mark Boelens; Johan Piqueur; Jan Baele πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 French βš– 272 KB

Cyciiition of r,b-alkenylimines with bromine in dichloromethane gave instantaneous formation of cyclic iminium bromides, which were converted into either pyrrolidines or piperidines, depending upon the substitution pattern. This reaction has been applied in the synthesis of 2.azaspiro compounds.

From Amino Acids to Fused Chiral Pyrroli
✍ Eliezer Falb; Abraham Nudelman; Hugo E. Gottlieb; Alfred Hassner πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 449 KB

Intramolecular nitrile oxide olefin cycloaddition (INOC) reactions of oximes 1-3 and of 24-27 derived from l-amino acids have been found to proceed stereoselectively, yielding tricyclic fused pyrrolidines and piperidines. Further manipulation led to chiral hydroxymethyl-substituted fused piper-

Simple synthetic routes to geiparvarin
✍ S.H Kang; C.Y Hong πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 French βš– 207 KB

SumWWY: Starting from geranyl acetate, efficient routes to O(ZH)-furanone derivatives via allylic