Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Guangyin Qian"'
Publikováno v:
ChemCatChem. 11:5762-5765
Publikováno v:
Tetrahedron. 75:1774-1780
Mediators play a central role in Catellani-type reactions. Herein we reported the discovery of inexpensive 5-norbornene-2-carboxylic acid (N4) as a general catalytic mediator (20 mol%) to facilitate ortho C–H activation and the following C–C bond
Autor:
Shijun Gao, Siwei Zhou, Qianghui Zhou, Miao Bai, Wei Yan, Hong-Gang Cheng, Han Chen, Guangyin Qian
Publikováno v:
Angewandte Chemie International Edition. 57:10980-10984
Reported is a modular one-step three-component synthesis of tetrahydroisoquinolines using a Catellani strategy. This process exploits aziridines as the alkylating reagents, through palladium/norbornene cooperative catalysis, to enable a Catellani/Hec
Autor:
Qi Liu, Guangyin Qian, Qianwen Gao, Peng Wang, Qiang Wei, Ze-Shui Liu, Qianghui Zhou, Hong-Gang Cheng
Publikováno v:
ACS Catalysis. 8:4783-4788
A cooperative catalytic system comprising a palladium/XPhos complex and 5-norbornene-2-carboxylic acid was developed. This system promotes a two-component annulation reaction, allowing the construction of tetrahydronaphthalenes and indanes that conta
Autor:
Qiang Wei, Guangyin Qian, Hong-Gang Cheng, Ruiming Chen, Yuanyuan Xia, Zhi Geng, Han Chen, Chenggui Wu, Qianghui Zhou, Yuming Zhang, Jingyang Zhang
Publikováno v:
Angewandte Chemie International Edition. 57:3444-3448
We report a cooperative catalytic system comprising a PdII complex, XPhos, and the potassium salt of 5-norbornene-2-carboxylic acid that enables the use of epoxides as alkylating reagents in the Catellani reaction, thereby expanding the existing para
Autor:
Zhi Geng, Hong-Gang Cheng, Chenggui Wu, Yuming Zhang, Guangyin Qian, Qiang Wei, Qianghui Zhou, Jingyang Zhang, Ruiming Chen, Han Chen, Yuanyuan Xia
Publikováno v:
Angewandte Chemie. 130:3321-3321
Publikováno v:
ChemInform. 46
An unexpected rhodium-catalyzed regioselective C–H chlorination of 7-azaindoles was developed using 1,2-dichloroethane (DCE) as a chlorinating agent and 7-azaindole as the directing group. This protocol provides an efficient access to ortho-chlorin
Publikováno v:
ChemInform. 46
An efficient and mild synthesis of imidazo[1,2-a]pyrimidine derivatives has been developed from readily available pyrimidyl arylamines or enamines through a hypervalent iodine-promoted intramolecular C–H bond cycloamination reaction. This protocol
Publikováno v:
ChemInform. 45
An efficient rhodium-catalyzed regioselective C–H bond cyanation of arenes was developed using tert-butyl isocyanide as the cyanide source. A wide range of (hetero)aryl and cycloalkenyl nitriles co...
Publikováno v:
Organic letters. 16(20)
An unexpected rhodium-catalyzed regioselective C–H chlorination of 7-azaindoles was developed using 1,2-dichloroethane (DCE) as a chlorinating agent and 7-azaindole as the directing group. This protocol provides an efficient access to ortho-chlorin