A feasibility study on the synthesis of phenylephrine via ruthenium-catalyzed homogeneous asymmetric hydrogenation
摘要:
We report a feasibility study on a new route to (R)-phenylephrine based on the ruthenium catalyzed asymmetric hydrogenation of an aminoketone precursor The direct and fast asymmetric reduction of aminoketones or their hydrochloride salts is achievable at low catalyst loadings (molar substrate to catalyst ratio S/C >25 000/1 TOF up to 25 000 h(-1)) with high enantioselectivity (>95% ee) without the need for N-protection nor isolation of the free base prior to reaction 2010 Elsevier Ltd All rights reserved
A feasibility study on the synthesis of phenylephrine via ruthenium-catalyzed homogeneous asymmetric hydrogenation
作者:John F. McGarrity、Antonio Zanotti-Gerosa
DOI:10.1016/j.tetasy.2010.09.013
日期:2010.10
We report a feasibility study on a new route to (R)-phenylephrine based on the ruthenium catalyzed asymmetric hydrogenation of an aminoketone precursor The direct and fast asymmetric reduction of aminoketones or their hydrochloride salts is achievable at low catalyst loadings (molar substrate to catalyst ratio S/C >25 000/1 TOF up to 25 000 h(-1)) with high enantioselectivity (>95% ee) without the need for N-protection nor isolation of the free base prior to reaction 2010 Elsevier Ltd All rights reserved