Silanes in organic synthesis. 9. Enesilylation as a method for 1,2-carbonyl migration within ketones and for conversion to 1,2-transposed allylic alcohols

1980 ◽  
Vol 45 (15) ◽  
pp. 3028-3037 ◽  
Author(s):  
William E. Fristad ◽  
Thomas R. Bailey ◽  
Leo A. Paquette

ChemInform ◽  
2010 ◽  
Vol 29 (3) ◽  
pp. no-no
Author(s):  
Q. XU ◽  
B. CHAO ◽  
Y. WANG ◽  
D. C. DITTMER


2010 ◽  
Vol 82 (7) ◽  
pp. 1461-1469 ◽  
Author(s):  
Luca Mantilli ◽  
David Gérard ◽  
Sonya Torche ◽  
Céline Besnard ◽  
Clément Mazet

The catalytic asymmetric isomerization of allylic amines to enamines stands out as one of the most accomplished and well-studied reactions in asymmetric catalysis as illustrated by its industrial application. In contrast, the related asymmetric isomerization of primary allylic alcohols to the corresponding aldehydes still constitutes a significant challenge in organic synthesis. Herein, we show that under appropriate reaction conditions, iridium-hydride catalysts promote the isomerization of primary allylic alcohols under very mild reaction conditions. The best catalysts deliver the desired chiral aldehydes with unprecedented levels of enantioselectivity and good yields. Mechanistic hypotheses have been drawn based on preliminary investigations.



ChemInform ◽  
2012 ◽  
Vol 43 (43) ◽  
pp. no-no
Author(s):  
Frederick A. Luzzio


Tetrahedron ◽  
2012 ◽  
Vol 68 (27-28) ◽  
pp. 5323-5339 ◽  
Author(s):  
Frederick A. Luzzio


Tetrahedron ◽  
1997 ◽  
Vol 53 (36) ◽  
pp. 12131-12146 ◽  
Author(s):  
Qinyu Xu ◽  
Bin Chao ◽  
Yongmei Wang ◽  
Donald C. Dittmer


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