X-ray Studies of 2-Amino-4-(3-nitrophenyl)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3-carbonitrile and 2-Amino-7,7-dimethyl-4-(4-nitrophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile

被引：0
|
作者：
Sharma, S. [1 ]
Banerjee, B. [2 ]
Brahmachari, G. [2 ]
Kant, R. [1 ]
Gupta, V. K. [1 ]
机构：
[1] Univ Jammu, Postgrad Dept Phys & Elect, Xray Crystallog Lab, Jammu 180006, India
[2] Visva Bharati, Dept Chem, Lab Nat Prod & Organ Synth, Santini Ketan 731235, W Bengal, India
来源：
CRYSTALLOGRAPHY REPORTS | 2015年 / 60卷 / 07期
关键词：
APOPTOSIS INDUCERS; SERIES; DISCOVERY;
D O I：
10.1134/S1063774515070251
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Two carbonitrile compounds, 2-amino-4-(3-nitrophenyl)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3-carbonitrile (I) and 2-amino-7,7-dimethyl-4-(4-nitrophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (II), were synthesized, and their crystal structures were determined by X-ray diffraction technique. The crystals are triclinic, a = 7.7970(12), 8.2171(7), b = 9.0390(10), 9.2238(7), c = 15.148(2), 14.5585(11) angstrom, alpha = 81.439(10)degrees, 74.895(6)degrees, beta = 75.194(12)degrees, 87.392(6)degrees, gamma = 76.151(11)degrees, 78.552(7)degrees, for I and II, respectively, Z = 2, sp. gr. P (1) over bar. The pyran ring in both the compounds deviates significantly from planarity and adopts boat conformation. The crystal structure is stabilized by N-H center dot center dot center dot O and N-H center dot center dot center dot N hydrogen bonds.
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页码：1136 / 1141
页数：6
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