作者:Markus Horn、Herbert Mayr、Emmanuel Lacôte、Everett Merling、Jordan Deaner、Sarah Wells、Timothy McFadden、Dennis P. Curran
DOI:10.1021/ol202836p
日期:2012.1.6
The nucleophilicity parameters (N) of 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene borane and 1,3-dimethylimidazol-2-ylidene borane are 9.55 and 11.88. This places N-heterocyclic carbene boranes (NHC-boranes) among the most nucleophilic classes of neutral hydride donors. Reductions of highly electron-poor C═N and C═C bonds provide hydrogenation products along with new, stable borylated products
1,3-双(2,6-二异丙基苯基)咪唑-2-亚硼烷和1,3-二甲基咪唑-2-亚烷基硼烷的亲核参数(N)为9.55和11.88。这使N-杂环卡宾硼烷(NHC-硼烷)成为最亲核的中性氢化物供体类别。高度贫电子的C═N和C═C键的还原提供了氢化产物以及新的稳定的硼化产物。结果表明,NHC-硼烷作为中性有机还原剂具有相当大的尚未开发的潜力。