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BINOL-based diphosphonites as ligands in the asymmetric Rh-catalyzed conjugate addition of arylboronic acids.

Organic letters (2001-12-12)
M T Reetz, D Moulin, A Gosberg
摘要

[reaction: see text] BINOL-based diphosphonites having achiral backbones are useful ligands in the Rh-catalyzed conjugate addition of arylboronic acids to alpha,beta-unsaturated carbonyl compounds. The nature of the achiral backbone determines the direction and degree of enantioselectivity, with er values of up to 99.5:0.5 possible.

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Sigma-Aldrich
(11bR, 11′bR)-4,4′-(氧代二-2,1-亚苯基)双-二萘并[2,1-d:, 1′, 2′-f][1,3,2]二噁磷环庚烷
Sigma-Aldrich
(11bS, 11′bS)-4,4′-(氧代二-2,1-亚苯基)双-二萘并[2,1-d: 1′, 2′-f][1,3,2]二噁磷环庚烷

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