An Efficient and Simple One-Pot Synthesis of Novel 2-Amino-5-aza-6-(dinitrilomethylene)-4,7,7-trimethylbicyclo[2.2.2]octane-1,3-dicarbo-nitrile and its Crystal Structure
作者:Nitu Mahajan、Vivek K. Gupta、Pinki Kotwal、Ajay P. S. Pannu、T. K. Razdan
DOI:10.1007/s10870-010-9919-z
日期:2011.4
The title compound was prepared by the reaction of 4-methyl-pent-3-en-2-one and malononitrile, at room temperature, in the presence of indium-triflate and triethylamine. The structure of the molecule was established by spectral analysis and X-ray diffraction studies. The compound crystallizes in the monoclinic space group C2/c with unit cell parameters: a = 14.269 (2), b = 10.141 (2), c = 19.743 (3) Å, β = 95.523(4)°, Z = 8. The crystal structure was solved by direct methods and refined to R = 0.0526 for 2,690 observed reflections. The isoquinuclidine rings adopt boat conformation. The molecules in the unit cell are arranged in layers. The crystal structure is stabilized by N–H⋯N interactions. Crystal structure analysis of the novel 2-amino-5-aza-6-(dinitrilomethylene)-4,7,7-trimethylbicyclo[2.2.2]octane-1,3-dicarbonitrile.
标题化合物是通过4-methyl-pent-3-en-2-one与malononitrile在室温下,在三氟化铟和三乙胺的存在下反应制备的。分子结构通过光谱分析和X射线衍射研究确定。该化合物结晶于单斜空间群C2/c,其晶胞参数为:a = 14.269 (2) Å,b = 10.141 (2) Å,c = 19.743 (3) Å,β = 95.523(4)°,Z = 8。晶体结构通过直接方法解出,并精修至对于2,690个观察到的反射的R值为0.0526。异奎宁环采取船式构象。晶胞中的分子排列成层。晶体结构通过N–H⋯N相互作用稳定。对新型2-氨基-5-氮杂-6-(二腈甲叉基)-4,7,7-三甲基双环[2.2.2]辛烷-1,3-二腈的晶体结构分析。