Total Synthesis Without Protecting Groups: Pyrrolidines and Cyclic Carbamates
摘要:
A protecting group free synthesis of 2,3-cis substituted hydroxypyrrolidines is reported. Two novel reaction methodologies allow for the stereoselective formation of cyclic carbamates from olefinic amines, and the formation of primary amines via a Vasella/reductive amination reaction, both performed in aqueous media.
[EN] METHODS FOR THE PREPARATION OF ALKENYLAMINES, CYCLIC CARBAMATES OR DITHIOCARBAMATES, AND AMINOALCOHOLS OR AMINOTHIOLS [FR] PROCÉDÉS POUR LA PRÉPARATION D'ALCÉNYLAMINES, DE CARBAMATES CYCLIQUES OU DE DITHIOCARBAMATES, ET D'AMINOALCOOLS OU D'AMINOTHIOLS