Evidence of ketenimine formation during the multiple C-C coupling of isocyanides by stabilized Group 4 metallacyclobutanes
作者:Cristina Valero、Matthias Grehl、Doris Wingbermuehle、Lioba Kloppenburg、Donald Carpenetti、Gerhard Erker、Jeffrey L. Petersen
DOI:10.1021/om00014a006
日期:1994.2
Multiple C-C coupling of isocyanides has been demonstrated by the ambient-pressure reactions of CNMe with Cp2M(N(CMe3)CC(=NCMe3)CH2SiMe2CH2) and the high-pressure reactions of CNCMe3 with CP2M(CH2SiMe2CH2), which afford Cp2M(N(Me)C-C(=NCMe3)C(=NCMe3)CH2SiMe2CH2) and Cp2M(N-(CMe3)C(=C=NCMe3)C(=NCMe3)CH2SiMe2CH2) (M = Zr, Hf), respectively.