Formation of dimethylphosphinic acid during alkaline cleavage of tetramethyldiphosphine disulfide

1976 ◽  
Vol 25 (4) ◽  
pp. 936-936
Author(s):  
R. A. Malevannaya ◽  
E. N. Tsvetkov ◽  
M. I. Kabachnik
Keyword(s):  
Alkaline Cleavage ◽  
Dimethylphosphinic Acid

THE ALKALINE CLEAVAGE OF o-NITROBENZYLTRIMETHYLSILANE SOLVENT EFFECTS IN THE DIOXANE–WATER SYSTEM

1963 ◽  
Vol 41 (6) ◽  
pp. 1525-1530 ◽  
Author(s):  
H. R. Allcock
Keyword(s):  
Transition State ◽  
Solvent Effects ◽  
Water System ◽  
Solvent Polarity ◽  
High Water ◽  
Aqueous Dioxane ◽  
Alkaline Cleavage ◽  
Rate Of Reaction ◽  
Kinetics Of

The kinetics of alkaline cleavage of o-nitrobenzyltrimethylsilane were examined in aqueous dioxane media. At high water concentrations, increases in solvent polarity retard the cleavage, as required by a mechanism involving charge dispersion in the transition state. At high dioxane concentrations, solvent polarity increases are accompanied by increases in the rate of reaction, a result which may reflect association between the solvent components.

scholarly journals Specific lysine labeling by 18OH- during alkaline cleavage of the alpha-1-antitrypsin-trypsin complex.

1977 ◽  
Vol 74 (10) ◽  
pp. 4311-4314 ◽  
Author(s):  
A. B. Cohen ◽  
L. D. Gruenke ◽  
J. C. Craig ◽  
D. Geczy
Keyword(s):  
Alkaline Cleavage ◽  
Alpha 1 Antitrypsin

Alkaline Cleavage of Unsymmetrical β-Diketones. Ring Opening of Acylcylohexanones to Form ε-Acyl Caproic Acids1

1948 ◽  
Vol 70 (12) ◽  
pp. 4023-4026 ◽  
Author(s):  
Charles R. Hauser ◽  
Frederic W. Swamer ◽  
Betty I. Ringler
Keyword(s):  
Ring Opening ◽  
Alkaline Cleavage

ChemInform Abstract: Alkaline Cleavage of Trihaloacetophenones

ChemInform ◽  
2010 ◽  
Vol 22 (8) ◽  
pp. no-no
Author(s):  
J. P. GUTHRIE ◽  
J. COSSAR
Keyword(s):  
Alkaline Cleavage

scholarly journals Novel Betaines of the Hexaalkylguanidinio-carboxylate Type

2009 ◽  
Vol 64 (11-12) ◽  
pp. 1617-1624 ◽  
Author(s):  
Matthias Walter ◽  
Gerhard Maas
Keyword(s):  
Nucleophilic Substitution ◽  
Methyl Esters ◽  
Melting Points ◽  
Alkaline Cleavage

Betaines 7a, b and 8a, b have been prepared from 3- and 4-piperidinecarboxylic acid and N,N,N',N'-tetraalkyl-chloroformamidinium chlorides via the corresponding methyl esters. These betaines are highly hygroscopic, thermally very stable, and, with the exception of 7b, have rather low melting points. They undergo a surprisingly facile alkaline cleavage of the hexaalkylguanidinium moiety. They react with dichloromethane by a twofold nucleophilic substitution to form methylene dicarboxylates such as 11. TheNMR (1H, 13C) data of betaines 7 and 8 are discussed

Alkaline Cleavage of 2,3-Dibromo-2-butene-1,4-diammonium Salts

2005 ◽  
Vol 75 (11) ◽  
pp. 1717-1719
Author(s):  
T. A. Saakyan ◽  
A. Kh. Gyul'nazaryan ◽  
N. O. Markaryan ◽  
S. T. Kocharyan
Keyword(s):  
Alkaline Cleavage

Configuration of the methyl ester of dimethylphosphinic acid

1970 ◽  
Vol 19 (8) ◽  
pp. 1629-1633
Author(s):  
O. A. Raevskii ◽  
R. R. Shagidullin ◽  
I. D. Morozova ◽  
L. E. Petrova ◽  
F. G. Khalitov
Keyword(s):  
Methyl Ester ◽  
Dimethylphosphinic Acid
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