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Gallium trichloride-catalyzed conjugate addition of indole and pyrrole to α,β-unsaturated ketones in aqueous media 被引量:5
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作者 Rong Xu jin chang ding +2 位作者 Xi An Chen Miao chang Liu Hua Yue Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第6期676-679,共4页
Michael addition of indole and pyrrole to a variety of α, β-unsaturated ketones was efficiently promoted by a catalytic amount of GaCl3 in aqueous media to afford the corresponding products in good to excellent yields.
关键词 Gallium trichloride Michael addition INDOLE PYRROLE α β-Unsaturated ketones
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Tetrahydrofuran Ring-opening with Acyloxyphosphonium Bromide Catalyzed by Zinc Bromide: An Effective Method for the Preparation of 4-Bromobutyl Esters 被引量:1
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作者 Hua Yue WU jin chang ding Shun WANG 《Chinese Chemical Letters》 SCIE CAS CSCD 2002年第7期589-592,共4页
Catalyzed by zinc bromide, tetrahydrofuran ring can be opened with acyloxyphos- phonium bromide generated in situ to afford 4-bromobutyl esters under mild conditions in good to excellent yields.
关键词 Zinc bromide tetrahydrofuran ring acyloxyphosphonium bromide 4-bromobutyl esters.
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Chemoselective Reduction of Azides to Amines Using Sm/TMSCl System in the Presence of Trace Amounts of Water
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作者 jin chang ding Hua Yue WU 《Chinese Chemical Letters》 SCIE CAS CSCD 2001年第8期659-662,共4页
Azides can be easily reduced to the corresponding amines with Sm/TMSCl/H2O (trace) system in excellent yields under mild and neutral conditions.
关键词 AZIDES AMINES Sm/TMSCl/H2O(trace)system
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