A New Method for Selective Activation of Amino, Hydroxy, and Mercapto Carboxylic Acids at the Carboxyl Group: Preparation of Thiol and Selenol Esters

1978 ◽  
Vol 17 (4) ◽  
pp. 267-268 ◽  
Author(s):  
Hans-Joachim Gais ◽  
Thomas Lied
Keyword(s):  
Carboxylic Acids ◽  
New Method ◽  
Carboxyl Group ◽  
Selective Activation

ChemInform Abstract: A New Method for the Protection of Carboxylic Acids with a Triisopropylsiloxymethyl Group.

ChemInform ◽  
2013 ◽  
Vol 44 (12) ◽  
pp. no-no
Author(s):  
Hikaru Yoshimura ◽  
Kohei Eto ◽  
Keisuke Takahashi ◽  
Jun Ishihara ◽  
Susumi Hatakeyama
Keyword(s):  
Carboxylic Acids ◽  
New Method

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: NEW METHOD FOR OZONOLYSIS OF OLEFINS TO CARBOXYLIC ACIDS

1977 ◽  
Vol 8 (3) ◽  
pp. no-no
Author(s):  
V. N. ODINOKOV ◽  
L. P. ZHEMAIDUK ◽  
G. A. TOLSTIKOV
Keyword(s):  
Carboxylic Acids ◽  
New Method

A new method for the preparation of derivatives of carboxylic acids

1984 ◽  
Vol 61 (4) ◽  
pp. 347
Author(s):  
Ian D. Brindle ◽  
Susan Chassie
Keyword(s):  
Carboxylic Acids ◽  
New Method ◽  
Derivatives Of
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