Methylenecyanamide (CH<sub>2</sub>═NCN) and (<i>Z</i>)- and (<i>E</i>)-Iminoacetonitriles (NC–CH═NH), Dimers of Hydrogen Cyanide
作者:Hajer Ayachi、Houda Gazzeh、Taoufik Boubaker、Jean-Claude Guillemin
DOI:10.1021/acs.joc.2c02493
日期:2023.2.17
(Z)- and (E)-iminoacetonitriles (NCCH═NH), two hydrogen cyanide dimers, are described as key compounds in prebiotic chemistry. Among the many possible dimers of HCN with covalent bonds, even the second on the scale of thermodynamic stability, methylenecyanamide (CH2═NCN), has been investigated little. We show that this compound can be isolated, is stable enough to give an adduct with a nucleophile
( Z )- 和 ( E )- 亚氨基乙腈 (NCCH=NH) 是两种氰化氢二聚体,被描述为生命起源化学中的关键化合物。在许多可能的具有共价键的 HCN 二聚体中,即使是热力学稳定性第二高的亚甲基氰胺 (CH 2 = NCN),也很少被研究。我们表明,这种化合物可以分离,足够稳定,可以与亲核试剂或二烯形成加合物,并且可以在生命起源前的条件下轻松生成,突出了在这种介质中的可能作用。异构体之间的比较表明在形成和化学反应性方面存在显着差异。