Synthesis of a new chiral bisphosphine ligand, MOCBP, and its use in rhodium(I)-catalyzed asymmetric hydrogenation of a cyclic enamide

Autor: Kazuo Achiwa, Toshiaki Morimoto, Noriya Nakajima
Rok vydání: 1995
Předmět:
Zdroj: Tetrahedron: Asymmetry. 6:75-78
ISSN: 0957-4166
Popis: A new chiral bisphosphine ligand (6) bearing a cyclobutane framework was readily prepared by using diastereoselective [2+2] cycloaddition. Its rhodium(I) complex was found to be an efficient catalyst for the asymmetric hydrogenation of a cyclic enamide, N-acetyl-1-methylene-1,2,3,4-tetrahydroisoquinoline (9), affording (R)-(−)-N-acetylsalsodine (10) in up to 80.6% ee.
Databáze: OpenAIRE