Rotamers and isomers in the fulgide series. Part 1. Stereochemistry and conformational analysis of bis-(3,4-dimethoxybenzylidene)succinic anhydrides by X-ray crystallography and molecular mechanics
作者:Jan C. A. Boeyens、Louis Denner、Guido W. Perold
DOI:10.1039/p29880001749
日期:——
two forms, the Z,Z-isomer and the arylnaphthalene derivative. X-Ray structures of these crystalline forms are reported. The conformations of the other rotamers were simulated by molecularmechanics, using an empirical force-field based on the observed structure of the symmetrical E,E-rotamer, described here. The aromatic rings of the E,E-isomers are eclipsed and under severe strain, which inhibits free
Ruthenium catalyzed hydrogenation of cyclic anhydrides and dehydrogenation of diols have been successfully applied to the highly regioselective synthesis of arylnaphthalene lignans.
钌催化的环状酸酐的加氢和二醇的脱氢已成功地用于芳基萘木脂素的高区域选择性合成。
Baddar et al., Journal of the Chemical Society, 1955, p. 461,464
作者:Baddar et al.
DOI:——
日期:——
Anjaneyulu,A.S.R. et al., Indian Journal of Chemistry, 1973, vol. 11, p. 203 - 206
作者:Anjaneyulu,A.S.R. et al.
DOI:——
日期:——
142. The constituents of natural phenolic resins. Part II. “Sulphite-liquors lactone.”