Synthesis and Crystal Structure of Ethyl 4-(2-Chloro-4-fluorophenyl)-6-hydroxy-3-oxo-1,3-dihydro-5-isobenzofurancarboxylate  

作　　者：徐晓倩 王晓奎 杨世颖 郑志兵 赵国明 李松 

机构地区：[1]Institute of Pharmacology and Toxicology,Academy of Military Medical Sciences [2]Shenyang Pharmaceutical University [3]Institute of Materia Medica Chinese Academy of Medical Sciences & Peking Union Medical College

出　　处：《Chinese Journal of Structural Chemistry》2010年第1期43-46,共4页结构化学（英文）

基　　金：supported by the National High-tech R&D Program (863 Program) (2006AA020605);the National Basic Research Program of China (973 Program) (2004CB518908)

摘　　要：The crystal structure of the title compound（C17H12ClFO5,Mr=350.72） was determined by single-crystal X-ray diffraction.The crystal belongs to monoclinic,space group P21/c,with a=7.693（1）,b=15.767（1）,c=12.986（1）,β=97.23（1）°,V=1562.6（2）3,Z=4,Dc= 1.491 g/cm3,λ（MoKα）=0.71073,F（000）=720,μ（MoKα）=0.280 mm-1,R=0.0563 and wR=0.1674.A total of 3592 unique reflections were collected,of which 2462 with Ⅰ＆gt;2σ（Ⅰ） were observed.Five-membered lactone rings and hydroxyl-substituted phenyl rings are approximately coplanar with their dihedral angle of 4.1°. The dihedral angle between two different phenyl rings is 71.3°. To our interest, intramolecular O（1）-H（1）…O（4） hydrogen bonds could be found in each molecule. Intramolecular hydrogen bonds and intermolecular van der Waals force contribute to the stability of the structure.The crystal structure of the title compound（C17H12ClFO5,Mr=350.72） was determined by single-crystal X-ray diffraction.The crystal belongs to monoclinic,space group P21/c,with a=7.693（1）,b=15.767（1）,c=12.986（1）,β=97.23（1）°,V=1562.6（2）3,Z=4,Dc= 1.491 g/cm3,λ（MoKα）=0.71073,F（000）=720,μ（MoKα）=0.280 mm-1,R=0.0563 and wR=0.1674.A total of 3592 unique reflections were collected,of which 2462 with Ⅰ＆gt;2σ（Ⅰ） were observed.Five-membered lactone rings and hydroxyl-substituted phenyl rings are approximately coplanar with their dihedral angle of 4.1°. The dihedral angle between two different phenyl rings is 71.3°. To our interest, intramolecular O（1）-H（1）…O（4） hydrogen bonds could be found in each molecule. Intramolecular hydrogen bonds and intermolecular van der Waals force contribute to the stability of the structure.

关 键 词：isobenzofurancarboxylate PHTHALIDE crystal structure synthesis 

分 类 号：O621.15[理学—有机化学]