Synthesis of a Heteroannulated Furanose via Intramolecular Michael Addition in an ω-Hydroxy α,β-Unsaturated Nitrile
作者:José L. Marco、Susana Fernández
DOI:10.1039/a903443i
日期:——
An highly stereospecific Michaeladdition in the ω-hydroxyα,β-unsaturatednitrile 4, obtained from ‘diacetone glucose’ 2, leading to annulated furanose 7 is reported.
A new synthetic route to chiral, multiply functionalized cyclopentane rings
作者:José Marco Contelles、Pilar Ruiz、Belén Sánchez、M.L. Jimeno
DOI:10.1016/s0040-4039(00)79149-0
日期:1992.9
The tributyltin hydride mediated free radicalcyclization of sugar derivatives 4–6 gives the annulatedfuranoses 9–11 in good yield and high diastereoselectivity. This protocol is a new synthetic route for the preparation of complex cyclopentanoid molecules.