A Pd（II） catalyzed tandem reaction of o-alkynylbenzaldehydes or o-alkynylbenzaldimines with substituted indoles initiated by the intermolecular addition of indoles to the carbonyl or imine group followed by the nucl...A Pd（II） catalyzed tandem reaction of o-alkynylbenzaldehydes or o-alkynylbenzaldimines with substituted indoles initiated by the intermolecular addition of indoles to the carbonyl or imine group followed by the nucleopalladation of an intramolecular alkyne and quenching the carbon-palladium bond by protonolysis to regenerate the Pd（II） species was developed. The reaction can be carried out under mild conditions without the necessity of a redox system.展开更多
The Palladium inserted hydridopalladium species represents as RCOOPdH. This work finds an interesting coupling of palladium inserted RCOOPdH species with potassium styryltrifluoroborates to synthesize new kinds of sty...The Palladium inserted hydridopalladium species represents as RCOOPdH. This work finds an interesting coupling of palladium inserted RCOOPdH species with potassium styryltrifluoroborates to synthesize new kinds of styryl ester compounds. Pd(OAc)<sub>2</sub> was most effective catalyst for this new cross-coupling reaction under microwave irradiation and gave styryl esters in good to moderate yields.展开更多
The system,Pd（OAc）_2/imidazolium salts（L_2）,was found as an efficient catalyst in the Heck coupling reaction of olefins with aryl halides and Suzuki reactions of various aryl halides with aryl boronic acids under ...The system,Pd（OAc）_2/imidazolium salts（L_2）,was found as an efficient catalyst in the Heck coupling reaction of olefins with aryl halides and Suzuki reactions of various aryl halides with aryl boronic acids under aerobic condition.This catalytic system demonstrates great tolerance to a wide range of groups on all substrates of aryl halides,alkenes and aryl boronic acids.展开更多
基金Project supported by the National Basic Research Program of China （No. 2009CB825300） and the Natural Science Foundation of China （Nos. 20732005, 20872158）.
文摘A Pd（II） catalyzed tandem reaction of o-alkynylbenzaldehydes or o-alkynylbenzaldimines with substituted indoles initiated by the intermolecular addition of indoles to the carbonyl or imine group followed by the nucleopalladation of an intramolecular alkyne and quenching the carbon-palladium bond by protonolysis to regenerate the Pd（II） species was developed. The reaction can be carried out under mild conditions without the necessity of a redox system.
文摘The Palladium inserted hydridopalladium species represents as RCOOPdH. This work finds an interesting coupling of palladium inserted RCOOPdH species with potassium styryltrifluoroborates to synthesize new kinds of styryl ester compounds. Pd(OAc)<sub>2</sub> was most effective catalyst for this new cross-coupling reaction under microwave irradiation and gave styryl esters in good to moderate yields.
基金the Research Council of University of Maragheh for financially support of this workM.B.thanks the Sharif University of Technology for funding of this work
文摘The system,Pd（OAc）_2/imidazolium salts（L_2）,was found as an efficient catalyst in the Heck coupling reaction of olefins with aryl halides and Suzuki reactions of various aryl halides with aryl boronic acids under aerobic condition.This catalytic system demonstrates great tolerance to a wide range of groups on all substrates of aryl halides,alkenes and aryl boronic acids.
