55526-69-7Relevant academic research and scientific papers
Asymmetric addition of diethylzinc to diphenylphosphinoyl-imines catalyzed by copper(II) trifluoromethanesulfonate-chiral (2′-ethylamino-[1,1′] binaphthalenyl-2-yl)-thiophosphoramidic acid O,O′-diaryl ester ligands
Shi, Min,Lei, Zhi-Yu,Xu, Qin
, p. 2237 - 2242 (2006)
The chiral binaphthylthiophosphoramide L1 prepared from the reaction of O,O-diphenyl chlorothiophosphate with (R)-(+)-N-ethyl-1,1′-binaphthyl-2, 2′-diamine was used as a catalytic chiral ligand in the copper(II) trifluoromethanesulfonate-promoted asymmetr
Design and synthesis of novel active phosphonate esters and their application in preparation of ceftriaxone
Ren, Hui-Xue,Sun, You-Min,Wu, Dao-Ji,Ma, Yong-Shan,Ying, Han-Jie,Ma, Yan
, p. 155 - 159 (2014/07/07)
For a series of active phosphonate esters, the anhydride abbreviated as ANPTA (6a) exhibits the highest reactivity in the preparation of ceftriaxone. The synthesis of ceftriaxone was optimized with the pilot-scale yield reaching 95.7%. The results were explained from the structural viewpoint and supported by analysis of the calculated Mulliken atomic charge distribution.
Dual substituent effects on anilinolysis of bis(aryl) chlorothiophosphates
Barai, Hasi Rani,Lee, Hai Whang
, p. 3597 - 3601 (2014/01/17)
The reactions of bis(Y-aryl) chlorothiophosphates (1) with substituted anilines and deuterated anilines are investigated kinetically in acetonitrile at 55.0 °C. The Hammett plots for substituent Y variations in the substrates show biphasic concave upwards
The synthesis and evalution of novel aryl-substituted dithioimidophosphonates as an extrantant for metals
Tang, Ruiren,Gou, Cancheng
, p. 2725 - 2731 (2007/10/03)
A novel series of O,O′,O″,O?- tetraaryldithioimidophonates [(ArO)2PS]2NH 4 were synthesized by the reaction of O,O,-diaryl phosphorochlorothionates 2 and diarylphosphonothioic amide under a strong basic condition. The key intermediat
