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【期刊论文】Total Synthesis and Structure Revision of Stachybotrys Spirolactams
邓卫平, Wei-Ping Deng, Min Zhong, Xiao-Chuan Guo, and Andrew S. Kende*
J. Org. Chem. 2003, 68, 7422-7427,-0001,():
-1年11月30日
The spirolactam structure 1 reported in 1996 by Roggo et al. has been enantioselectively synthesized in 20 steps from (+)-Wieland-Miescher ketone. Spectra of this synthetic lactam differed from those of the natural spirolactam from the Roggo group, leading to the hypothesis that the natural lactammay be the regioisomer 27, a structure previously ascribed by Jarvis et al. to the natural product stachybotrylactam. This hypothesis was confirmed by the first total synthesis of (-)-stachybotrylactam (27). Double reductive amination of two molecules of aldehyde 29 with one molecule of L-lysine led by analogous chemistry to the first synthesis of the pseudosymmetric "dimer" 30, whose spectra corresponded to those of the natural "dimer" originally assigned structure 5 by the Roggo group.
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邓卫平, Wei-Ping Deng, An-Hu Li, Li-Xin Dai* and Xue-Long Hou
Tetrahedron 56(2000)2967-2974,-0001,():
-1年11月30日
--On treatment of N-tosylimines 1 and 4-hydroxyl-cis-butenyl arsonium salt 5 or sulfonium salt 11a with KOH in acetonitrile at room temperature, 2-(a-substituted N-tosylaminomethyl)-2,5-dihydrofurans 4 were obtained in moderate yields through a new ylide
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【期刊论文】Syntheses of side-chain fluorinated biologically important imidazoles and indoles
邓卫平, Bohumil Dolensky, Ghilsoo Nam, Wei-Ping Deng, Jayan Narayanan, Junfa Fan, Kenneth L. Kirk*
Journal of Fluorine Chemistry 125(2004)501-508,-0001,():
-1年11月30日
We review in this report the preparation of several side-chain fluorinated analogues of biologically important imidazoles and indoles. The building blocks used should also have applications in other synthetic problems. The addition of "FBr" to vinyl imidazole derivatives was used to prepare b-fluoro- and b,b-difluorohistamine and histidinols, as well as b-fluorourocanic acid. Deoxyfluorination of intermediate acylindoles was used to prepare a series of b,b-difluorotryptamine derivative, including the fluorinated analogue of the important neurotransmitter, serotonin.
Imidazoles, Indoles, Biogenic amines, ", FBr", addition, Deoxyfluorination
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邓卫平, Oliver B. Sutcliffe† and Martin R. Bryce*
Tetrahedron: Asymmetry 14(2003)2297-2325,-0001,():
-1年11月30日
The synthesis and reactivity of planar chiral 2-ferrocenyloxazolines and 1,1'bis (oxazolinyl) ferrocenes is reviewed, with particular emphasis on their applications in asymmetric catalysis.
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邓卫平, Wei-Ping Deng, Xue-Long Hou, * Li-Xin Dai, Yi-Hua Yu and Wei Xia
Chem. Commun., 2000, 285-286,-0001,():
-1年11月30日
A series of planar chiral 1,1A-P,N-2A-substituted ferrocene ligands 9-12 and 16, prepared with diastereopurity > 99+1, have been used to examine the role of planar chirality, and significant effects on enantioselectivity as well as the control of absolute configuration in palladium-catalyzed allylic alkylation as a model reaction were observed.
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