Effect of ligand N,N-substituents on the reactivity of chiral copper(II) salalen, salan, and salalan complexes toward asymmetric nitroaldol reactions
The synthesis and effect of ligand N,N-substituents on the reactivity of chiral copper(II) salalen, salan, and salalan complexes toward nitroaldol reactions of nitromethane with various aldehydes have been described. The salan complexes exhibit superior results compared to the salalen and salalan complexes; the nature of the N,N-substituents is crucial for the enantioselectivity of the target nitroaldol products.
Kannan, Masanam,Punniyamurthy, Tharmalingam
p. 1331 - 1339
(2015/01/16)
PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE -HYDROXYPHOSPHONIC ACIDS AND DERIVATIVES THEREOF, OPTICALLY ACTIVE ALUMINUM(SALALEN) COMPLEXES AND PROCESS FOR PRODUCTION OF THE COMPLEXES, AND PROCESS FOR PRODUCTION OF SALALEN LIGANDS
The present invention relates to a production method capable of producing an optically active α-hydroxyphosphonic acid and its derivatives with sufficiently high enantioselectivity not only for aromatic aldehydes but also for aliphatic aldehydes, and more
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Page/Page column 13
(2008/06/13)
Synthesis of an optically active al(salalen) complex and its application to catalytic hydrophosphonylation of aldehydes and aldimines
Optically active aluminum(salalen) complex 2 was newly synthesized in a modular synthetic manner, and it was found to serve as an efficient catalyst for hydrophosphonylation of aldehydes and aldimines, giving the corresponding α-hydroxy and α-amino phosph
Saito, Bunnai,Egami, Hiromichi,Katsuki, Tsutomu
p. 1978 - 1986
(2007/10/03)
Synthesis of an optically active C1-symmetric Al(salalen) complex and its application to the catalytic hydrophosphonylation of aldehydes
(Chemical Equation Presented) Quite universally: The chiral trigonal-bipyramidal Al(salalen) complex 1 was synthesized and found to be an efficient catalyst for enantioselective hydrophosphonylation of various aldehydes with dimethyl phosphite (see scheme
Saito, Bunnai,Katsuki, Tsutomu
p. 4600 - 4602
(2007/10/03)
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