已开发出一种新的快速简便的方法,用于芳族醛和二醛与丙二腈和溴化氰的单锅反应,可在极短的时间内以极高的收率提供全取代的3-芳基环丙烷-1,1,2,2-四腈。大约5秒钟)。通过IR,1 H NMR,13 C NMR,质谱和X射线晶体学技术对结构进行了表征。对于这些化合物,晶体学数据在固体情况下在镜像中显示出两种结构,在溶液中显示出一种不同的结构。讨论了反应机理。
Solvent-free, one-pot synthesis of pentasubstituted cyclopropanes in the presence of BrCN and EtONa by milling
作者:Nader Noroozi Pesyan、Mohammad Rezaee
DOI:10.1007/s00706-014-1180-2
日期:2014.7
A solvent-free, one-pot process for the preparation of pentasubstituted 3-arylcyclopropane-1,1,2,2-tetracarbonitriles in the presence of solid sodium ethoxide by milling was achieved. The one-pot reaction of aromatic aldehydes and dialdehydes with malononitrile, cyanogen bromide, and solid sodium ethoxide afforded pentasubstituted cyclopropanes in excellent yield under solvent-free conditions. The structures were characterized and confirmed by IR, H-1 NMR, C-13 NMR spectroscopy, and mass spectrometry. Its advantages are easy workup, mild reaction conditions, and excellent yields.
A New, Fast and Easy Strategy for One-pot Synthesis of Full Substituted Cyclopropanes: Direct Transformation of Aldehydes to 3-Aryl-1,1,2,2-tetracyanocyclopropanes
作者:Nader Noroozi Pesyan、Mohammad Ali Kimia、Mohammad Jalilzadeh、Ertan Şahin
DOI:10.1002/jccs.201200189
日期:2013.1
A new, fast and easy method for one‐pot reaction of aromatic aldehydes and dialdehydes with malononitrile and cyanogen bromide has been developed to afford full substituted 3‐arylcyclopropane‐1,1,2,2‐tetracarbonitriles in excellent yields in very short time (about 5 seconds). The structures elucidations werev characterized by IR, 1H NMR, 13C NMR, mass spectrometry and X‐ray crystallography techniques
已开发出一种新的快速简便的方法,用于芳族醛和二醛与丙二腈和溴化氰的单锅反应,可在极短的时间内以极高的收率提供全取代的3-芳基环丙烷-1,1,2,2-四腈。大约5秒钟)。通过IR,1 H NMR,13 C NMR,质谱和X射线晶体学技术对结构进行了表征。对于这些化合物,晶体学数据在固体情况下在镜像中显示出两种结构,在溶液中显示出一种不同的结构。讨论了反应机理。