Synthesis of PolysubstitutedPyrrolidines from Cyclic Sulfate Esters and Enamines
作者:John D. Wallis、Jane O’Leary、Corrado Colli
DOI:10.1055/s-2003-38350
日期:——
The bis-lithium dianions of N-ethyl and N-aryl enamines of methyl acetoacetate react with cyclicsulfate esters of vic-diols to give tri- and tetrasubstituted pyrrolidine derivatives. The N-ethyl enamine of pentane-2,4-dione can also be converted to the corresponding pyrrolidine.
Lloyd,E.J.; Porter,Q.N., Australian Journal of Chemistry, 1977, vol. 30, p. 569 - 578
作者:Lloyd,E.J.、Porter,Q.N.
DOI:——
日期:——
Preparation and Hydrolysis of Some Acetals and Esters of D(—)-2,3-Butanediol
作者:H. K. Garner、H. J. Lucas
DOI:10.1021/ja01168a033
日期:1950.12
Electrochemical Reduction of Cyclic and Acyclic Sulfates
作者:Tsutomu Nonaka、Shuta Kihara、Toshio Fuchigami、Manuel M. Baizer
DOI:10.1246/bcsj.57.3160
日期:1984.11
It was confirmed that cyclic and acyclic sulfates of diols and monoalcohols could be reduced at cathodes in nonaqueous solvents. The reduction products were greatly affected by the molecular structures of the sulfates. The reduction of the cyclicsulfates of 1,2-diols yielded the corresponding alkenes and disulfate dianions of the parent diols in high yields and current efficiencies were based on one-electron
Process for Preparing Optically Active Diphosphanes
申请人:Jaekel Christoph
公开号:US20080242893A1
公开(公告)日:2008-10-02
The present invention relates to a process for preparing optically active bisphosphinylalkanes from the correspondingly substituted, racemic 1,2-diols. The optically active bisphosphinylalkanes which can be obtained in this way are suitable as ligands for preparing chiral transition metal catalysts.