Crystal Structures of Sulochrin Derivatives.
作者:Akihiro UENO、Hiroshi OHASHI、Toyoo NAKANO、Kaname KIMURA、Toshiyuki SHIMIZU、Toshio HAKOJIMA、Hiroshi IIJIMA
DOI:10.1248/cpb.46.1929
日期:——
The crystal structures of sulochrin derivatives, sulochrin triacetate (2) and sulochrin 4-(4'-bromobenzoate) (3), were determined. Triacetyl derivative 2 was in a conformation where the planes of two aromatic rings and the central carbonyl plane were all oblique to each other. Compound 3 was in a conformation where ring B and the central carbonyl planes were co-planar and crossed at a right angle to ring A plane, suggesting the effect of substituents at ortho positions on conformation of tetra ortho substituted benzophenones.
研究人员测定了舒洛清衍生物三乙酸舒洛清酯(2)和舒洛清 4-(4'-溴苯甲酸酯)(3)的晶体结构。三乙酸酯衍生物 2 的构象是两个芳香环的平面和中心羰基平面相互倾斜。化合物 3 的构象是环 B 和中心羰基平面共面,并与环 A 平面成直角交叉,这表明正交位置的取代基对四正交取代二苯甲酮的构象有影响。