Ethyl 2-amino-4-(4-fluorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-benzo[b]pyran-3-carboxylate

被引:3
|
作者
Shi, DQ [1 ]
Zhang, S [1 ]
Wang, XS [1 ]
Zhuang, QY [1 ]
机构
[1] Xuzhou Normal Univ, Dept Chem, Xuzhou 221116, Peoples R China
关键词
D O I
10.1107/S1600536803019834
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The title compound, C20H22FNO4, was synthesized by the reaction of 4-fluorobenzaldehyde with 5,5-dimethyl-1,3-cyclohexanedione and ethyl cyanoacetate. The pyran ring adopts a boat conformation, while the fused six-membered ring adopts a distorted boat conformation.
引用
收藏
页码:O1501 / O1502
页数:2
相关论文
共 50 条
  • [31] Crystal structure of 2-amino-4-(4-fluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13FN2O2
    Meng, Xian-Fang
    Liu, Li-Zeng
    Bai, Zheng-Chen
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2016, 231 (02): : 455 - 456
  • [32] Crystal structure of 2-amino-4-(2,6-dichlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C18H16Cl2N2O2
    Sui, Feng
    Li, Jing
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2016, 231 (02): : 489 - 490
  • [33] One-step synthesis of substituted 2-amino-5,6,7,8-tetrahydro 4H-benzo[b]pyrans.: Molecular and crystal structure of 2-amino-3-(2-methoxyethoxycarbonyl)-4-(2-nitrophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-benzo[b]pyran
    Shestopalov, AM
    Emelianova, YM
    Nesterov, VN
    RUSSIAN CHEMICAL BULLETIN, 2003, 52 (05) : 1164 - 1171
  • [34] Synthesis and crystal structure of 2-amino-7,7-dimethyl-3-toehxycarbonyl-4-(2-furyl)-5-oxo-5,6,7,8-tetrahydro-4-H-benzo-[b]-pyran under microwave irradiation
    Tu, SJ
    Feng, YJ
    Ma, HJ
    Liu, XH
    Shi, DQ
    Gao, Y
    CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2002, 21 (01) : 96 - 98
  • [35] Crystal structure of ethyl 2-amino-4-(4-hydroxy-3-methoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano-[4,3-b]pyran-3-carboxylate, C19H19NO7
    Zeng, Xiao-Qiong
    Tang, Qin
    Xie, Xian-Hong
    Feng, Jing
    Hu, Juan-Juan
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2019, 234 (02): : 235 - 236
  • [36] Clean synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran in water
    Shi, DQ
    Zhang, S
    Zhuang, QY
    Tu, SJ
    Hu, HW
    CHINESE JOURNAL OF ORGANIC CHEMISTRY, 2003, 23 (08) : 877 - 879
  • [37] 2-Amino-4-[4-(dimethylamino)phenyl]-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
    Qiao, Yan
    Chen, Guifang
    Kong, Lingqian
    Ju, Xiuping
    Gao, Zhiqing
    ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2011, 67 : O3067 - U1694
  • [38] 4-(4-Methoxyphenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydrochromene-2,5-dione
    Shi, Hao
    ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2009, 65 : O3216 - U1684
  • [39] 2-Amino-7,7-dimethyl-5-oxo-4-(p-tolyl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
    Anthal, Sumati
    Brahmachari, Goutam
    Laskar, Sujay
    Banerjee, Bubun
    Kant, Rajni
    Gupta, Vivek K.
    ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2012, 68 : 02592 - +
  • [40] Unexpected results in the Friedlander reaction of 4-aryl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-[1]benzopyran-3-carbonitriles
    Leon, Rafael
    Garcia, Antonio G.
    Marco-Contelles, Jose
    JOURNAL OF CHEMICAL RESEARCH, 2006, (08) : 536 - 538