作者:Rolf Gleiter、Bettina Gaa、Christoph Sigwart、Holger Lange、Oliver Borzyk、Frank Rominger、Hermann Irngartinger、Thomas Oeser
DOI:10.1002/(sici)1099-0690(199801)1998:1<171::aid-ejoc171>3.0.co;2-m
日期:1998.1
Tricyclo[3.3.0.03,7]octane-2,4-dione (2,4-stelladione, 3), tricyclo[3.3.0.03,7]octane-2,6-dione (2,6-stelladione, 4), and 2-oxotricyclo[3.3.0.03,7]octane-6-thione (5) were synthesized. Key steps in the procedures were a Paterno-Buchi reaction followed by an oxetane splitting with a strong base. Structure analysis on single crystals of 4 and 5 revealed long central C−C bonds (1.59 A) of the stellane
三环[3.3.0.03,7]辛烷-2,4-二酮(2,4-stelladione, 3)、三环[3.3.0.03,7]辛烷-2,6-二酮(2,6-stelladione, 4),合成了2-氧代三环[3.3.0.03,7]辛烷-6-硫酮(5)。程序中的关键步骤是 Paterno-Buchi 反应,然后是用强碱裂解氧杂环丁烷。对 4 和 5 单晶的结构分析揭示了星烷骨架的长中心 C-C 键 (1.59 A)。基于量子力学计算 (HF-SCF, 6) 记录和解释了 3、5 和 4-亚甲基三环-[3.3.0.03,7]octan-2-one (9) 的 He(I) 光电子光谱-31G* 基础)。3 (0.8 eV) 的第一个 PE 带之间的巨大能量差异是由于氧原子上的孤对与 σ 框架之间的强相互作用。