Remote asymmetric induction in reactions between 4- and 5-benzyloxypent-2-enyl(tributyl)stannanes and chiral imines prepared from butyl glyoxylate

1995 ◽  
pp. 657 ◽  
Author(s):  
David J. Hallett ◽  
Eric J. Thomas
Keyword(s):  
Asymmetric Induction ◽  
Chiral Imines

Very high 1,2- and 1,3-asymmetric induction in the reactions of allylic boron compounds with chiral imines

1986 ◽  
Vol 108 (24) ◽  
pp. 7778-7786 ◽  
Author(s):  
Yoshinori. Yamamoto ◽  
Kazuhiro. Maruyama ◽  
Toshiaki. Komatsu ◽  
Wataru. Ito
Keyword(s):  
Asymmetric Induction ◽  
Boron Compounds ◽  
Chiral Imines ◽  
Very High

ChemInform Abstract: Very High 1,2- and 1,3-Asymmetric Induction in the Reactions of Allylic Boron Compounds with Chiral Imines.

ChemInform ◽  
1987 ◽  
Vol 18 (16) ◽  
Author(s):  
Y. YAMAMOTO ◽  
S. NISHII ◽  
K. MARUYAMA ◽  
T. KOMATSU ◽  
W. ITO
Keyword(s):  
Asymmetric Induction ◽  
Boron Compounds ◽  
Chiral Imines ◽  
Very High

P-Chiral 2-{1'-[Butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazoles: A Second Chirality Center in Catalytic System

2005 ◽  
Vol 70 (3) ◽  
pp. 361-369 ◽  
Author(s):  
Dušan Drahoňovský ◽  
Petr Štěpnička ◽  
Dalimil Dvořák
Keyword(s):  
Catalytic System ◽  
Asymmetric Induction ◽  
Dimethyl Malonate ◽  
Enantiomerically Pure

P-Chiral (S,RP)-2-{1'-[butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazole (6) and (S,SP)-2-{1'-[butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazole (7) were prepared by the procedure developed by Jugé, starting from enantiomerically pure (-)- or (+)-ephedrine and dichloro(phenyl)phosphine. Compounds 6 and 7 were examined for asymmetric induction in the Pd-catalyzed reaction of rac-1,3-diphenylallyl acetate with dimethyl malonate. The best results were obtained with 7 (98% ee), while 6 gave 82% ee.

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