Efficient Asymmetric Hydrogenation of .ALPHA.-Amino Ketone Derivatives. A Highly Enantioselective Synthesis of Phenylephrine, Levamisole, Carnitine and Propranolol.

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Efficient Asymmetric Hydrogenation of .ALPHA.-Amino Ketone Derivatives. A Highly Enantioselective Synthesis of Phenylephrine, Levamisole, Carnitine and Propranolol.

1995; Pharmaceutical Society of Japan; Volume: 43; Issue: 5 Linguagem: Inglês

10.1248/cpb.43.738

ISSN

1347-5223

Autores

Shunji Sakuraba, Hisashi Takahashi, HIDEO TAKEDA, Kazuo Achiwa,

Tópico(s)

Chemical Reactions and Isotopes

Resumo

The complexes of pyrrolidine bisphosphine ligands (CPMs) with rhodium (I) were found to be efficient catalysts for asymmetric hydrogenation of α-amino ketone hydrochloride derivatives. Utilizing this methodology, we have developed efficient asymmetric syntheses of the optically active β-amino alcohols, phenylephrine, levamisole, carnitine and propranolol.

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Efficient Asymmetric Hydrogenation of .ALPHA.-Amino Ketone Derivatives. A Highly Enantioselective Synthesis of Phenylephrine, Levamisole, Carnitine and Propranolol.