An efficient asymmetricsynthesis of isochromanone derivatives was realized through Z-selective-1,3-OH insertion/aldol cyclization reaction involving acyclic carboxylic oxonium ylides. The combination of achiral dirhodium salts and chiral N,N′-dioxide–metal complexes, along with the use of α-diazoketones instead of α-diazoesters, enables the cascade reaction efficiently. A variety of benzo-fused δ-lactones
Experiments in the Colchicine Field. V. The Thermal and Photochemical Decomposition of Various 2-(β-Phenylethyl)-phenyldiazomethanes and 2-(γ-Phenylpropyl)-phenyldiazomethanes<sup>1</sup>
作者:C. David Gutsche、Emil F. Jason、Robert S. Coffey、Herbert E. Johnson
DOI:10.1021/ja01554a043
日期:1958.11
Hanson; Tarte, Bulletin des Societes Chimiques Belges, 1957, vol. 66, p. 619,627
作者:Hanson、Tarte
DOI:——
日期:——
Parvulescu, Luminitza; Banciu, Anca; Pop, Mircea, Revue Roumaine de Chimie, 2004, vol. 49, # 8, p. 725 - 731
作者:Parvulescu, Luminitza、Banciu, Anca、Pop, Mircea、Marton, George、Ciuculescu, Diana、Banciu, Mircea D.
DOI:——
日期:——
Pd/C-catalyzed dehydrogenation of 2-cinnamoylbenzoic acids to 3-benzylidene-3<i>H</i>-isochroman-1,4-diones
作者:Dejun Yang、Xuan Ji、Jie Zhang、Chenyang Zhang、Mingfei Li、Jin Li、Renhua Liu
DOI:10.1039/c8cc03402h
日期:——
Pd/C, a widely accepted hydrogenation catalyst, is found to catalytically dehydrogenate 2-cinnamoylbenzoic acids to 3-benzylidene-3-H-isochroman-1,4-diones with H2 as the only byproduct.