Preparation and reactivity of sterically encumbered organocatalysts and their use in the preparation of ( S )-Pregabalin precursors

Autor: Mauro Cortigiani, Andrea Mereu, Alberto Tampieri, Mauro F. A. Adamo, Claudio Monasterolo
Rok vydání: 2017
Předmět:
Zdroj: Tetrahedron Letters. 58:4205-4208
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2017.09.067
Popis: Herein we describe the preparation of a new class of sterically demanding organocatalysts derived from d -fructose and their use, alongside hitherto unreported doubly quaternarised Cinchona ammonium salts, in the Michael reaction of nitromethane with 4-nitro-5-alkenyl-isoxazoles.
Databáze: OpenAIRE