Synthesis and Crystal Structure of 1,3-Trans-1,4-cis- 3,4-di(4-bromophenyl)-1',2',3'-trihydro-1-hydroxy- benzo[g]bicyclo[3.3]octane-2-spiro-2'-indene-1'-one
Synthesis and Crystal Structure of 1,3-Trans-1,4-cis- 3,4-di(4-bromophenyl)-1',2',3'-trihydro-1-hydroxy- benzo[g]bicyclo[3.3]octane-2-spiro-2'-indene-1'-one作者机构:Department.of Chemistry Xuzhou Normal University Xuzhou Jiangsu 221116 China Key Laboratory of Biotechnology on Medical Plants of Jiangsu Province Xuzhou 221116 China
出 版 物:《Chinese Journal of Structural Chemistry》 (结构化学(英文))
年 卷 期:2006年第25卷第2期
页 面:187-191页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
主 题:benzo[g]bicyclo[3.3]octane-2-spiro-2'-indene-1'-one synthesis crystal structure,low-valent titanium
摘 要:The title compound C35H30Br2O3 (C32H24Br2O2·CH3COCH3) has been synthesized by the dimerization of 2-(4'-bromobenzal)-1-indenone induced by low-valent titanium reagent, and characterized by elemental analysis, IR,^1H NMR and X-ray single-crystal diffraction. The crystal belongs to triclinic, space group P1^- with a = 10.273(7), b = 11.036(7), c = 13.944(9) ,A°, a = 73.972(9), β =76.577(10),γ= 88.871(10)°, V = 1476.3(17)A°^3, Mr = 658.41, Z = 2, Dr = 1.481 g/cm^3, μ(MoKa) = 2.780 mm^-1, F(000) = 668, the final R = 0.0452 and wR = 0.0975. X-ray analysis reveals that the two cyclopentane rings spiro-fused each other adopt envelope conformations, while the other cyclopentane ring (C(1)--C(2)-C(7)-C(9)) is coplanar. In addition, there is a classical intermolecular hydrogen bond O(1)-H(1)...O(2) connecting the adjacent molecules into dimers.