| Synthesis and Crystal Structure of Ethyl （2-Amino-4-（2-chlorophenyl）-4H-benzo-[h]-chromene-2-yl） Formate |
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| 引用本文： | 王香善,史达清,屠树江,姚昌盛.Synthesis and Crystal Structure of Ethyl （2-Amino-4-（2-chlorophenyl）-4H-benzo-[h]-chromene-2-yl） Formate[J].结构化学,2004,23(3):278-281. |
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| 作者姓名： | 王香善 史达清 屠树江 姚昌盛 |
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| 作者单位： | WANG Xiang-Shana，b SHI Da-Qinga，b② TU Shu-Jianga，b YAO Chang-Shenga，b a (Department of Chemistry，Xuzhou Normal University，Xuzhou 221116，China) b (Key Laboratory of Biotechnology on Medical Plant，Xuzhou，Jiangsu 221116，China) |
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| 基金项目： | This work was supported by the Foundation of the ?Surpassing Project?of Jiangsu province (No. QL98001) |
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| 摘 要： | 1 INTRODUCTION 2-Aminochromene is an important class of compounds as the main compounds of many natu- rally occurring products which can be used as cos- metics and pigments1] and potential biodegradable agrochemicals2～4]. Inorganic solid supports as c…
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| 关 键 词： | 乙基（2-氨基-4-（2-氯代苯基）-4H-苯并-[h]-苯并呋喃-2-基）甲酸盐 C22H18ClNO3 合成 晶体结构 |
Synthesis and Crystal Structure of Ethyl (2-Amino-4-(2-chlorophenyl)- 4H-benzo-[h]-chromene-2-yl) Formate |
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| WANG Xiang-Shan,SHI Da-Qing,TU Shu-Jiang,YAO Chang-sheng.Synthesis and Crystal Structure of Ethyl (2-Amino-4-(2-chlorophenyl)- 4H-benzo-[h]-chromene-2-yl) Formate[J].Chinese Journal of Structural Chemistry,2004,23(3):278-281. |
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| Authors: | WANG Xiang-Shan SHI Da-Qing TU Shu-Jiang YAO Chang-sheng |
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| Abstract: | 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) ? b = 111.14(1), Z = 8, V = 3713(1) 3, Dc = 1.359 g/cm3, m(MoKa) = 0.228 mm-1, F(000) = 1584, R = 0.0565 and wR = 0.1320 for 1749 observed reflections (I > 2s(I)). X-ray analysis reveals that the C(1), C(2), C(3), C(4), C(5) and O(1) 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) ? respectively, indicating they are C=C double bonds. In addition, there exist intra- and intermolecular hydrogen bonds in the crystal structure. |
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| Keywords: | crystal structure 4H-benzo-[h]-chromene synthesis |
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