METHOD FOR SYNTHESIS OF O-DIPHENYLPHOSPHINOBENZOIC ACID
申请人:GAO Jianxun
公开号:US20110077426A1
公开(公告)日:2011-03-31
The present invention relates to a method for synthesis of o-diphenylphosphinobenzoic acid which includes the steps as follows: using chlorodiphenylphosphine as starting material, chlorodiphenylphosphine and alkali metal are added to the solvent to conduct cracking, which produces a diphenyl phosphine alkali metal salt, then o-chlorobenzoic acid salt or o-chlorobenzoic acid ester is added to conduct coupling reaction to produce diphenylphosphinobenzoic acid salt or diphenylphosphinobenzoic acid ester, o-diphenylphosphinobenzoic acid is obtained after hydrolysis. o-diphenylphosphinobenzoic acid can be prepared under atmospheric pressure at temperature above 0° C. by using the present method. The method is safe and stable to operate and can save a lot of energy, thus being suitable for large-scale production.
METHOD FOR SYNTHESIZING O-DIPHENYLPHOSPHINO BENZOIC ACID
申请人:Sinomax Chemical Technology Co., Ltd
公开号:EP2383275A1
公开(公告)日:2011-11-02
The present invention relates to a method for synthesis of o-diphenylphosphinobenzoic acid which includes the steps as follows: using chlorodiphenylphosphine as starting material, chlorodiphenylphosphine and alkali metal are added to the solvent to conduct cracking, which produces a diphenyl phosphine alkali metal salt, then o-chlorobenzoic acid salt or o-chlorobenzoic acid ester is added to conduct coupling reaction to produce diphenylphosphinobenzoic acid salt or diphenylphosphinobenzoic acid ester, o-diphenylphosphinobenzoic acid is obtained after hydrolysis. o-diphenylphosphinobenzoic acid can be prepared under atmospheric pressure at tempreture above 0°C by using the present method. The method is safe and stable to operate and can save a lot of energy, thus being suitable for large-scale production.
Ruthenium arene complexes with triphenylphosphane ligands: cytotoxicity towards pancreatic cancer cells, interaction with model proteins, and effect of ethacrynic acid substitution
(EA-CO2H = ethacrynic acid), were synthesized in good to high yields and characterized by analytical techniques, IR, UV-Vis and multinuclear NMR spectroscopy, and single crystal X-ray diffraction in the cases of 1 and 2. The unstable compounds [(η6-arene)RuCl2(κP-PPh2(2-C6H4CO2CH2CH2OCO-EA))] (arene = p-cymene, 5a; arene = C6H6, 5b) were obtained and NMR identified in solution. Electrochemical and spectro-electrochemical