Isolation and Crystal Structure of 3β-acetoxy-20 （29）-lupen-28-aldehyde from the Bark of Platanus Acerifolia Willd

• 作者: WANG Chuan-Jin ZHU Guang-Jun
• 来源期刊: 结构化学
• 学科: 农学
• 关键词: 二球悬铃木 晶体结构 乙酰氧基 分离 树皮 X-射线衍射分析 标题化合物 醛
• 年，卷（期）: 2012,（8）
• 页码范围: 1140-1144
• 页数: 5页
• 分类号: O614.121|S792.37
• 语种: 英文

摘要

The title compound,3β-acetoxy-20（29）-lupen-28-aldehyde,is a pentacyclic triterpene which was first isolated from the acetyl acetate fraction of Platanus acerifolia Willd bark and characterized by 1 H-NMR and 13 C-NMR.Besides,the crystal of the compound was acquired,and the relative configuration of 3β-acetoxy-20（29）-lupen-28-aldehyde was determined by single-crystal X-ray diffraction analysis for the first time.It crystallizes in the monoclinic system,space group C2 with a=14.428（3）,b=6.6620（13）,c=30.399（6）,β=103.73（3）°,Z=4,C32 H50 O3,M r=482.72,Dc =1.130 g/cm 3,V=2838.5（10）3,μ（MoKa）=0.070 mm-1,F（000）= 1064,the final R=0.0657 and wR=0.1855 for 2839 independent reflections （R int=0.0802）and 1963 observed ones （I〉2（I））.Intramolecular van der waals force contributes to the stability of the structure.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	ZHU Guang-Jun		2	0	0.0	0.0
2	WANG Chuan-Jin		2	0	0.0	0.0