Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Azhong Wang"'
Publikováno v:
Tetrahedron Letters. 52:5736-5739
An efficient procedure for regio- and stereoselective synthesis of a series of conjugated enynes by a simple Pd-catalyzed cross-coupling reaction of unactivated ethylenes and ethynyl bromide has been developed. The reaction proceeds smoothly in DMF t
Publikováno v:
The Journal of Organic Chemistry. 76:6958-6961
A palladium-catalyzed carbonation-diketonization reaction of terminal alkenes via carbon-nitrogen bond cleavage under an atmosphere of oxygen has been developed. A series of 1,2-diketones were readily prepared from the reaction of aromatic terminal a
Publikováno v:
Synlett. 2011:1023-1027
An intriguing, facile, and efficient oxidation and cyclizationof alkynes catalyzed by Pd(OAc) 2 in a fluorous biphasicsystem of N, N-dimethylacetamide(DMA) and perfluorodecalin directly with molecular oxygen is described,which opens an efficient acce
Publikováno v:
Organic Letters. 13:1028-1031
A new and efficient method for the synthesis of amides via palladium-catalyzed C-C coupling of aryl halides with isocyanides is reported, by which a series of amides were formed from readily available starting materials under mild conditions. This tr
Publikováno v:
The Journal of Organic Chemistry. 75:6700-6703
Symmetrical 1,3-diyne compounds can be easily synthesized via a transition-metal-free homocoupling reaction of 1-haloalkynes without base and oxidant. The method shows excellent functional group compatibility and high yields.
Autor:
Azhong Wang, Huanfeng Jiang
Publikováno v:
The Journal of Organic Chemistry. 75:2321-2326
1,2-Diols, aldehydes, and ketones are important intermediates in chemical synthesis, and alkenes are possible precursors for 1,2-diols, aldehydes, and ketones. Herein, novel and environmentally benign methods for palladium-catalyzed dihydroxylation a
Publikováno v:
European Journal of Organic Chemistry. 2010:1227-1230
A palladium-catalyzed alkenylation of 1,2,3-triazoles with terminal conjugated alkenes by direct C-H functionalization has been developed in the presence of Cu(OAc) 2 and dioxygen. A variety of terminal alkenes such as acrylates and styrenes can perf
Publikováno v:
Synlett. 2009:929-932
The development of a new method for the synthesis of tetrasubstituted furans using aromatic alkynes is reported. The strategy involves a tandem process of palladium-catalyzed oxidation and Zn(OTf) 2 -catalyzed cyclization in the presence of molecular
Publikováno v:
European Journal of Organic Chemistry. 2008:2309-2312
A green, simple and effective polymer-supported catalytic system has been developed for the cyclization of propargyl alcohols with carbon dioxide (CO2). α-Alkylidene cyclic carbonates were obtained in satisfactory isolated yields in most cases. The
Publikováno v:
Synthesis. 2008:763-769
The cycloaddition reactions of carbon dioxide with propargylic alcohols and amines under supercritical conditions produce 4-methyleneoxazolidin-2-ones or 4-methyloxazol-2-ones. The optimized conditions consist of the use of an alcohol (2 mmol), an am