Role of .pi.-Electron Delocalization in the Enhanced Acidity of Carboxylic Acids and Enols Relative to Alcohols

1995 ◽  
Vol 117 (39) ◽  
pp. 9875-9880 ◽  
Author(s):  
Philippe C. Hiberty ◽  
Carsten P. Byrman
Keyword(s):  
Carboxylic Acids ◽  
Electron Delocalization

Reductive Condensation of a Nitro Group with Carboxylic Acids Promoted by Phosphorus(III) Compounds: A Short Route to 5H-Dibenzo[b,e][1,4]diazepin-11(10H)-ones

Synthesis ◽  
2020 ◽  
Author(s):  
Zbigniew Wróbel ◽  
Michał Tryniszewski ◽  
Robert Bujok ◽  
Roman Gańczarczyk
Keyword(s):  
Nitro Group ◽  
Carboxylic Acids ◽  
Carboxyl Group ◽  
Short Route ◽  
Step Method ◽  
One Pot ◽  
Aryl Group ◽  
Intramolecular Condensation ◽  
Reductive Condensation

Tributyl- or triphenylphosphine promotes a one-pot, three-step method for the synthesis of differently substituted dibenzodiazepinones from N-aryl-2-nitroanilines. Pyridine analogues and the corresponding thiazepinones can also be formed using this method. The process involves deoxygenation of the nitro group, then formation of an iminophosphorane intermediate and its intramolecular condensation with a carboxyl group placed in the N-aryl group. The role of the carboxyl group in the formation of the iminophosphorane and the mode of cyclization are discussed.

ChemInform Abstract: Catalytic Role of PPh3and Its Polymer Bound Analogue in the Amidation of Carboxylic Acids Mediated by 2,4,6-Trichloro-1,3,5-triazine.

ChemInform ◽  
2015 ◽  
Vol 46 (48) ◽  
pp. no-no
Author(s):  
Chuthamat Duangkamol ◽  
Subin Jaita ◽  
Sirilak Wangngae ◽  
Wong Phakhodee ◽  
Mookda Pattarawarapan
Keyword(s):  
Carboxylic Acids ◽  
Catalytic Role

Role of apparent pKa of carboxylic acids in lipase-catalyzed esterifications in biphasic systems

2009 ◽  
Vol 59 (1-3) ◽  
pp. 220-224 ◽  
Author(s):  
Pablo Domínguez de María ◽  
Elena Fernández-Álvaro ◽  
Antoon ten Kate ◽  
Gerrald Bargeman
Keyword(s):  
Carboxylic Acids ◽  
Biphasic Systems

Swift and efficient sono-hydrolysis of nitriles to carboxylic acids under basic condition: Role of the oxide anion radical in the hydrolysis mechanism

2011 ◽  
Vol 18 (1) ◽  
pp. 28-31 ◽  
Author(s):  
Pascal Lignier ◽  
Julien Estager ◽  
Nathalie Kardos ◽  
Lydie Gravouil ◽  
Julien Gazza ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Anion Radical ◽  
Hydrolysis Mechanism ◽  
Oxide Anion Radical ◽  
Hydrolysis Of

The Role of Hydroxyl Groups in the Self-Assembly of Long Chain Alkylhydroxyl Carboxylic Acids on Mica

2008 ◽  
Vol 112 (43) ◽  
pp. 16968-16972 ◽  
Author(s):  
José J. Benítez ◽  
José A. Heredia-Guerrero ◽  
Francisco M. Serrano ◽  
Antonio Heredia
Keyword(s):  
Carboxylic Acids ◽  
Self Assembly ◽  
The Self ◽  
Hydroxyl Groups ◽  
Long Chain

The Role of Carboxylic Acids in Electroless Nickel Plating

1993 ◽  
Vol 71 (1) ◽  
pp. 11-14 ◽  
Author(s):  
S. J. Rose ◽  
R.E. Gustar ◽  
D. R. Mihara ◽  
R. I. Bickley ◽  
H. G. M. Edwards ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating
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