| Synthesis and Structure Analysis of N-（Dehydroabietyl）maleamic Acid |
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| 引用本文： | 饶小平,伍勇,宋湛谦,商士斌.Synthesis and Structure Analysis of N-（Dehydroabietyl）maleamic Acid[J].结构化学,2011,30(2):225-229. |
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| 作者姓名： | 饶小平 伍勇 宋湛谦 商士斌 |
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| 作者单位： | Institute of Chemical Industry of Forest Products;Chinese Academy of Forestry; |
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| 基金项目： | supported by the grants from Fundamental Research Foundation of the Central Commonwealth Institute of the Chinese Academy of Forestry (CAFYBB2008021); the Natural Science Foundation of Jiangsu Province (BK2008088); the National Natural Science Foundation of China (30800871) |
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| 摘 要： | N-(Dehydroabietyl)maleamic acid was synthesized from dehydroabietylamine and maleic anhydride.Its structure was characterized by IR,1 H-and 13 C-NMR spectra.The stereo structure of the title compound was also unambiguously confirmed by X-ray crystal structure analysis.The white crystal crystallizes in the monoclinic system,space group P2 1 with a=12.075(2),b=10.377(2),c=17.840(4),β=100.31(3) °,V=2199.3(8) 3,R=0.0618 and wR=0.1437.Two crystallographically independent molecules with different conformations co-exist in the unit.In each molecule,the two cyclohexane rings form a trans ring junction with chair and half-chair conformations,respectively.The C=C double bond between two carbonyl groups is in a Z configuration.Intermolecular and intramolecular hydrogen bonds coexist to stabilize the structure.
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| 关 键 词： | 晶体结构分析 合成 反式构象 分子间氢键 分子内 脱氢枞酸 马来酸酐 NMR谱 |
Synthesis and Structure Analysis of N-(Dehydroabietyl)maleamic Acid |
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| RAO Xiao-Ping,WU Yong,SONG Zhan-Qian,SHANG Shi-Bin.Synthesis and Structure Analysis of N-(Dehydroabietyl)maleamic Acid[J].Chinese Journal of Structural Chemistry,2011,30(2):225-229. |
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| Authors: | RAO Xiao-Ping WU Yong SONG Zhan-Qian SHANG Shi-Bin |
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| Institution: | RAO Xiao-Ping ② WU Yong SONG Zhan-Qian SHANG Shi-Bin (Institute of Chemical Industry of Forest Products,Chinese Academy of Forestry,Nanjing 210042,China) |
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| Abstract: | N-(Dehydroabietyl)maleamic acid was synthesized from dehydroabietylamine and maleic anhydride.Its structure was characterized by IR,1H-and 13C-NMR spectra.The stereo structure of the title compound was also unambiguously confirmed by X-ray crystal structure analysis.The white crystal crystallizes in the monoclinic system,space group P21 with α =12.075(2),b = 10.377(2),с= 17.840(4)(A°),β = 100.31(3)°,V= 2199.3(8)(A°)3,R= 0.0618 and wR=0.1437.Two crystallographically independent molecules with different conformations co-exist in the unit.In each molecule,the two cyclohexane rings form a trans ring junction with chair and half-chair conformations,respectively.The C=C double bond between two carbonyl groups is in a Z configuration.Intermolecular and intramolecular hydrogen bonds coexist to stabilize the structure. |
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| Keywords: | dehydroabietiylamine crystal structure half-chair hydrogen bonds |
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