The asymmetric aminolytic kinetic resolution (AKR) of racemic terminal epoxides using carbamates as the nucleophile catalyzed by (salen)Co III complex provides a practical and straightforward method for the synthesis of both aliphatic and aromatic N-Boc- or N-Cbz-protected 1,2-amino alcohols in almost enantiomerically pure form (ee >99%). The AKR uses an easily accessible catalyst and inexpensive starting materials, and the reactions are conveniently carried out at room temperature under an air atmosphere.
Asymmetric Catalytic Synthesis of Enantiopure N-Protected 1,2-Amino Alcohols / G. Bartoli; M. Bosco; A. Carlone; M. Locatelli; P. Melchiorre; L. Sambri. - In: ORGANIC LETTERS. - ISSN 1523-7060. - STAMPA. - 6:(2004), pp. 3973-3975. [10.1021/ol048322l]
Asymmetric Catalytic Synthesis of Enantiopure N-Protected 1,2-Amino Alcohols
BARTOLI, GIUSEPPE;BOSCO, MARCELLA;CARLONE, ARMANDO;LOCATELLI, MANUELA;MELCHIORRE, PAOLO;SAMBRI, LETIZIA
2004
Abstract
The asymmetric aminolytic kinetic resolution (AKR) of racemic terminal epoxides using carbamates as the nucleophile catalyzed by (salen)Co III complex provides a practical and straightforward method for the synthesis of both aliphatic and aromatic N-Boc- or N-Cbz-protected 1,2-amino alcohols in almost enantiomerically pure form (ee >99%). The AKR uses an easily accessible catalyst and inexpensive starting materials, and the reactions are conveniently carried out at room temperature under an air atmosphere.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
