Stereospecific 1,3-Migration of an Fe(CO)3Group on Acyclic Conjugated Polyenes:  Application to Remote and Iterative Asymmetric Induction

2001 ◽  
Vol 66 (18) ◽  
pp. 6116-6123 ◽  
Author(s):  
Yoshiji Takemoto ◽  
Kiyonori Ishii ◽  
Toshiro Ibuka ◽  
Yoshihisa Miwa ◽  
Tooru Taga ◽  
...  
Keyword(s):  
Asymmetric Induction ◽  
Conjugated Polyenes

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.

ChemInform Abstract: Remote Asymmetric Induction Using Neighboring Group Participation of a Sulfenyl Group.

ChemInform ◽  
2010 ◽  
Vol 25 (49) ◽  
pp. no-no
Author(s):  
Y. HASHIMOTO ◽  
Y. SATO ◽  
N. TAKESHITA ◽  
K. KUDO ◽  
K. SAIGO
Keyword(s):  
Asymmetric Induction ◽  
Neighboring Group ◽  
Group Participation ◽  
Neighboring Group Participation

ChemInform Abstract: Formal Total Synthesis of Fostriecin via 1,4-Asymmetric Induction Using Cobalt-Alkyne Complex.

ChemInform ◽  
2008 ◽  
Vol 39 (35) ◽  
Author(s):  
Yujiro Hayashi ◽  
Hirofumi Yamaguchi ◽  
Maya Toyoshima ◽  
Kotaro Okada ◽  
Takumi Toyo ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Asymmetric Induction

Metallocenophanes, VII. Preparation and Characterisation of the Disilver(I) Complexes of Conjugated Polyenes with [2.2.2]Paracyclophanyl End Groups

1995 ◽  
Vol 128 (11) ◽  
pp. 1079-1082 ◽  
Author(s):  
Fenton R. Heirtzler ◽  
Henning Hopf ◽  
Peter Bubenitschek ◽  
Peter G. Jones
Keyword(s):  
End Groups ◽  
Conjugated Polyenes
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