3,4-Diphenyl-2a,5a,6,7,8,8a,8b-heptahydro-furo[4,3,2-de]chromen-2-one (1) was prepared as part of a project aimed at the synthesis of polycyclic natural-product-like scaffolds. X-ray analysis of crystals grown from ethanol revealed an incommensurately modulated structure. Data include main and satellite reflections up to second order. The modulation vector was refined using the NADA program. The modulated character of the structure of the organic compound C22H20O3 is interpreted in terms of the intermolecular C—H...O hydrogen bonds and close-contact approximation.
制备 3,4-二苯基-2a,5a,6,7,8,8a,8b-七氢-呋喃并[4,3,2-de]色烯-2-酮(1)是旨在合成多环天然产物样支架项目的一部分。对从乙醇中生长出来的晶体进行的 X 射线分析表明,该晶体具有非同调结构。数据包括高达二阶的主反射和卫星反射。利用 NADA 程序对调制矢量进行了细化。有机化合物 C22H20O3 结构的调制特性可从分子间 C-H...O 氢键和近似接触的角度来解释。