Novel Chemistry of α-Tosyloxy Ketones: Applications to the Solution- and Solid-Phase Synthesis of Privileged Heterocycle and Enediyne Libraries
作者:K. C. Nicolaou、T. Montagnon、T. Ulven、P. S. Baran、Y.-L. Zhong、F. Sarabia
DOI:10.1021/ja012146j
日期:2002.5.1
preparation and elaboration of alpha-tosyloxy ketones in solution- and on solid-phase are described. Both olefins and ketones serve as precursors to these relatively stable chemical entities: olefins via a novel one-pot epoxidation, arylsulfonic acid displacement, and oxidation sequence, and ketones by direct exposure to arylsulfonic acids in the presence of diacetoxy iodobenzene. Reaction of these substrates
Fjeldskaar, Inger Reidun; Rongved, Paul; Skatteboel, Lars, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1987, vol. 41, # 7, p. 477 - 486
作者:Fjeldskaar, Inger Reidun、Rongved, Paul、Skatteboel, Lars
DOI:——
日期:——
Electrochemical transformations of monooxa- and dioxabicycloalkenes and-bicycloalkanes
作者:Yu. N. Ogibin、A. O. Terent'ev、A. I. Ilovaisky、G. I. Nikishin
DOI:10.1007/bf02494854
日期:1999.11
Electrolysis of 2-oxa- and 2,5-dioxabicyclo[n.4.0]alk-1(6)-enes (n = 4, 10) under conditions of direct undivided anodic oxidation in methanol results in their electrochemical mono- and dimethoxylation; electrolysis of the corresponding 2-oxa- and 2,5-dioxabicycloalkanes involves electrochemical cleavage of the bridging carbon-carbon bonds followed by electrooxidative transformation into methyl omega-(2-methoxytetrahydrofuryl)-, omega-(dimethoxymethyl)-, and omega-(1,3-dioxolan-2-yl)alkanoates.