Volume of activation in the racemization of optically active sulfoxides and sulfonium salts

1970 ◽  
Vol 92 (18) ◽  
pp. 5303-5305 ◽  
Author(s):  
Kay R. Brower ◽  
Tung-Lin. Wu
Keyword(s):  
Optically Active ◽  
Sulfonium Salts

Asymmetric alkylation of .beta.-keto esters with optically active sulfonium salts

1989 ◽  
Vol 54 (10) ◽  
pp. 2374-2383 ◽  
Author(s):  
Kazuyuki Umemura ◽  
Haruo Matsuyama ◽  
Nobuko Watanabe ◽  
Michio Kobayashi ◽  
Nobumasa Kamigata
Keyword(s):  
Optically Active ◽  
Sulfonium Salts ◽  
Asymmetric Alkylation ◽  
Keto Esters

ChemInform Abstract: Asymmetric Alkylation of β-Keto Esters with Optically Active Sulfonium Salts.

ChemInform ◽  
1989 ◽  
Vol 20 (44) ◽  
Author(s):  
K. UMEMURA ◽  
H. MATSUYAMA ◽  
N. WATANABE ◽  
M. KOBAYASHI ◽  
N. KAMIGATA
Keyword(s):  
Optically Active ◽  
Sulfonium Salts ◽  
Asymmetric Alkylation ◽  
Keto Esters

The Racemization of Sulfonium Salts. III. The Racemization of Arylsulfonium Salts

1973 ◽  
Vol 51 (21) ◽  
pp. 3647-3648 ◽  
Author(s):  
David Darwish ◽  
Christopher E. Scott
Keyword(s):  
Rate Constants ◽  
Half Life ◽  
Steric Effect ◽  
Optically Active ◽  
Sulfonium Salts

The rate constants for racemization by inversion of a variety of monoaryl- and diarylsulfonium salts are reported. There is a marked steric effect upon the rate of the racemization reaction. An estimate is made of the half-life for racemization of acyclic optically active triarylsulfonium salts.

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