Synthesis and crystal structure of ethyl (2-amino-4-(2-chlorophenyl)-4H-benzo-[h]-chromene-2-yl) formate

被引：0

作者：

Wang, XS ^{[1
]}

Shi, DQ

Tu, SJ

Yao, CS

机构：

[1] Xuzhou Normal Univ, Dept Chem, Xuzhou 221116, Peoples R China

[2] Key Lab Biotechnol Med Plant, Xuzhou 221116, Jiangsu, Peoples R China

来源：

CHINESE JOURNAL OF STRUCTURAL CHEMISTRY | 2004年 / 23卷 / 03期

关键词：

crystal structure; 4H-benzo-[h]-chromene; synthesis;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The title compound ethyl (2-amino-4-(2-chlorophenyl)-4H-benzo-[h]-chromene-2-yl) formate (C22H18ClNO3, Mr = 379.82) was synthesized and characterized by X-ray single-crystal diffraction analysis. The crystal belongs to monoclinic, space group C2/c with a = 25.168(4), b = 9.584(1), c 16.503(3)Angstrom, beta = 111.14(1)degrees, Z 8, V = 3713(1) Angstrom(3), D-c= 1.359 g/cm(3), mu(MoKalpha) = 0.228 mm(-1), F(000) = 1584, R = 0.0565 and wR = 0.1320 for 1749 observed reflections (I > 2sigma(I)). X-ray analysis reveals that the C(1), C(2), C(3), C(4), C(5) and 0(l) atoms form a six-membered ring which adopts a boat conformation. In this ring, the bond distances of C(1)-C(2) and C(4)-C(5) are 1.356(4) and 1.357(4) Angstrom, respectively, indicating they are C=C double bonds. In addition, there exist intra- and intermolecular hydrogen bonds in the crystal structure.

引用

页码：278 / 281

页数：4

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