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1,5-苯并硫氮杂-α-苯基-β-内酰胺的合成及晶体结构
引用本文:李媛,杜彩云,孙娜,金声,邢其毅.1,5-苯并硫氮杂-α-苯基-β-内酰胺的合成及晶体结构[J].结构化学,1998(6).
作者姓名:李媛  杜彩云  孙娜  金声  邢其毅
作者单位:河北师范大学化学系!石家庄,050016,河北邯郸高等农业专科学校基础部!邯郸,056000,河北师范大学化学系!石家庄,050016,北京大学化学与分子工程学院!北京,100871,北京大学化学与分子工程学院!北京,100871
摘    要:1,5-苯并硫氮杂与苯乙酰氯反应生成1,5-苯并硫氮杂-α-苯基-β-内酰胺(Ⅱ)。X-射线单晶衍射测定结果表明,该化合物分子式为C29H22CINOS,M=467.5,晶体属单斜晶系,P21/c空间群,a=12.864(3),b=9.511(2),c=19.489(4)A,β=92.41(3)°,V=2382(1)A3,Dc=1.305g/cm3,Z=4,F(000)=976,μ=0.2636mm-1,R=0.068,Rw=0.068。该反应具有立体专一性,四员环上的2个苯基位于同一侧为顺式。产物分子中的七员环为类椅式构象。

关 键 词:晶体结构  1.5-苯并硫氮杂■  β-内酰胺  环加成反应

Synthesis and Crystal Structure of β-Lactam Derivative with Phenyl Substituent of 1, 5-benzothiazepine
LI Yuan, DU Cai-Yun, SUN Na ,JIN Sheng, XING Qi-Yi.Synthesis and Crystal Structure of β-Lactam Derivative with Phenyl Substituent of 1, 5-benzothiazepine[J].Chinese Journal of Structural Chemistry,1998(6).
Authors:LI Yuan  DU Cai-Yun  SUN Na  JIN Sheng  XING Qi-Yi
Abstract:The title compound(Ⅱ) has been synthesized by the reaction of 1, 5-benzothiazepine(Ⅰ)with phenylacetyl chloride. Its structure was determined by single crystal X-ray diffraction.Crystallographic data: C,29H22CINOS, Mr= 467. 5, monoclinic space group P21/c, a= 12. 864(3) A, b=9.511(2), c=19. 489(4), β=92. 41(3)°, V=2382(1) A3, Dr=1. 305 g/cm3, Z=4, F(000) =976, μ=0. 2636 mm-1, R=0. 068, Rw=0. 068. The cycloaddition reaction is astereospecific one. The two phenyl substituents on the four-membered ring adopt cis configuration. In this reaction, the conformation of the seven-membered ring changes from boat-like in(Ⅰ) to chair-like in(Ⅱ).
Keywords:cycloaddition reaction  β-lactam  crystal structure  1  5-benzothiazepine
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