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王磊, Lei Warng, *a, b Pinhua Li, a Zongtao Wu, a Jincan Yan, a Min Wang, a Yanbin Ding a
Synthesis 2003, No.13, 2001-2004,-0001,():
-1年11月30日
A practical reduction of nitroarenes with nanosized activated metallic iron powder in water at 210℃ (near-critical water) has been developed. The reduction generates the corresponding aromatic amines in excellent yields.
nanosize,, iron,, nitroarenes,, aromatic amines,, reduction
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王磊, Lei Wang and Yongmin Zhang*
Tetrahedron Letters 39(1998)5257-5260,-0001,():
-1年11月30日
The reductive coupling cyclization of 1, 1-dicyanoalkenes was performed with metallic samarium in saturated aqueous NH4C1-THF solution at room temperature. Sub-stoichiometric quantities of samarium could be employed and trans-isomer was the major product.
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王磊, Lei Wang and Yongmin Zhang*
Tetrahedron 55(1999)10695-10712,-0001,():
-1年11月30日
In saturated NH4CI (aq.)-THF solution at room temperature, metallic samaritan promoted reductive dimerization cyclization of gem-diactivated alkenes, reductive debromination of vic-dibromides, and reduction of sodium alkyl thiosulfates occur to afford corresponding functionalized cyciopentenes, (E)-alkenes, and disulfides. respectively in good yield. Only sub-stoichiometric quantities of samarium are employed in the former reactions and the trans-or trans, trans-form isomer is the majority product of the polysubstituted cyclopentene products.
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【期刊论文】Rapid microwave-enhanced, solventless Sonogashira coupling reaction on alumina
王磊, George W. Kabalka, * Lei Wang, Vasudevan Namboodiri and Richard M. Pagni
Tetrahedron Letters 41(2000)5151-5154,-0001,():
-1年11月30日
A microwave-enhanced, solventless Sonogashira coupling reaction has been developed. Terminal alkynes couple with aryl or alkenyl iodide on palladium-doped alumina in the presence of triphenylphosphine and cuprous iodide to provide high yields of products.
coupling reactions, palladium, microwave heating, alkynes
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【期刊论文】A novel preparation of methyl ketones through one-carbon homologation of aldehydes
王磊, Lei Wang, a, b, * Pinhua Li, a Jincan Yana and Zhongzhi Wuc
Tetrahedron Letters Pergamon 44(2003)4685-4688,-0001,():
-1年11月30日
A novel two-step aldehyde homologation procedure for the preparation of methyl ketones has been developed, which involves the use of 1,1-dibromo-1-alkenes as precursors and zinc metal as mediator in near-critical water.
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