Organolanthanide-Catalyzed Intramolecular Hydroamination/Cyclization of Aminoalkynes
作者:Yanwu Li、Tobin J. Marks
DOI:10.1021/ja9612413
日期:1996.1.1
This contribution reports the efficient and regiospecific Cp‘2LnCH(SiMe3)2 (Ln = La, Nd, Sm, Lu; Cp‘ = η5-Me5C5)- and Me2SiCp‘‘2LnCH(SiMe3)2 (Ln = Nd, Sm; Cp‘‘ = η5-Me4C5)-catalyzed hydroamination/cyclization of aliphatic and aromatic aminoalkynes of the formula RC⋮C(CH2)nNH2 to yield the corresponding cyclic imines RCH2CN(CH2)n-1CH2, where R, n, Nt h-1 (°C) = Ph, 3, 77 (21 °C); Ph, 3, 2830 (60 °C); Me
该贡献报告了高效且区域特异性的 Cp'2LnCH(SiMe3)2 (Ln = La, Nd, Sm, Lu; Cp' = η5-Me5C5)- 和 Me2SiCp''2LnCH(SiMe3)2 (Ln = Nd, Sm; Cp '' = η5-Me4C5)-催化加氢胺化/环化式RC⋮C(CH2)nNH2的脂肪族和芳香族氨基炔,生成相应的环状亚胺RCH2CN(CH2)n-1CH2,其中R、n、Nt h-1 (°C) = Ph, 3, 77 (21°C);Ph, 3, 2830 (60 °C); 我, 3, 96 (21 °C); CH2CMeCH2, 3, 20 (21 °C); H, 3, 580 (21 °C); Ph, 4, 4 (21 °C); Ph, 4, 328 (60 °C); Ph, 5, 0.11 (60 °C); 和SiMe3, 3, >7600 (21 °C),以及式R