91489-49-5Relevant articles and documents
Benzoyl methyl phosphates as efficient reagents in the one-pot tandem approach for the synthesis of 2-phenylbenzimidazoles in water
Hikawa, Hidemasa,Imani, Maki,Suzuki, Hideharu,Yokoyama, Yuusaku,Azumaya, Isao
, p. 3768 - 3773 (2014/01/06)
A novel and efficient method for the environmentally benign, catalyst- and auxiliary-free synthesis of 2-phenylbenzimidazoles in water is developed. Benzoyl methyl phosphates play important roles as biomimetic acylating agents for the one-pot tandem approach without additional catalysts.
An efficient protocol for the amidation of carboxylic acids promoted by trimethyl phosphite and iodine
Luo, Qun-Li,Lv, Lina,Li, Yu,Tan, Jian-Ping,Nan, Wenhui,Hui, Qun
scheme or table, p. 6916 - 6922 (2012/01/06)
A practical, one-pot protocol is described for the conversion of carboxylic acids into amides through carboxyl activation by the reagent combination of trimethyl phosphite and iodine. This method integrates several advantages: (1) it allows amines to be chemoselectively acylated with excellent results in the presence of sulfur and oxygen nucleophiles; (2) the method shows wide generality in respect of solvent, base, and substrate; (3) the reagents used are widely available and much less expensive than common coupling reagents, and (4) the process is remarkably convenient, permitting extraction, recrystallization, and column chromatography as optional work-up procedures. The chemoselectivity and generality of the method, the low cost, and wide availability of reagents combined with the ease of use make it a very favorable process.
Preparation of esters and amides from carboxylic acids by activation with dialkyl phosphite-carbon tetrachloride mixture
Jaszay, Zsuzsa M.,Petnehazy, Imre,Toke, Laszlo
, p. 2761 - 2768 (2007/10/03)
A simple one pot phase transfer catalytic method is described for the synthesis of carboxylic amides and esters from carboxylic acids and amines or alcohols, respectively. For the activation of the carboxylic acids 'in situ' generated phosphoric acid diester chlorides were applied.