The extraordinary reactions of phenyldimethylsilyllithium with N,N-disubstituted amides
作者:Marina Buswell、Ian Fleming、Usha Ghosh、Stephen Mack、Matthew Russell、Barry P. Clark
DOI:10.1039/b412768d
日期:——
the text. Notably, each member of the homologous series of amides Ph(CH2)nCONMe2 gives rise to a substantially different product: when n= 0, the reaction is normal, and the yield of the alph]-silylamine 20e is high; when n=1, proton transfer in the intermediate anion 64 and displacement of the phenyl group leads to the silaindane 66; when n=2, fragmentation of the intermediate anion 80, and capture
Yttrium‐Catalyzed Intermolecular Anti‐Markovnikov Hydroamination and Sequential Intermolecular Hydroamination/Endocyclization of Vinylsilanes
作者:Lara H. Polak、John B. Soltys、Kai C. Hultzsch
DOI:10.1002/adsc.202300862
日期:2023.12.5
The intermolecularanti-Markovnikovhydroamination of vinylsilanes was achieved utilizing five silyl-substituted ortho-terphenoxide yttrium complexes. The highest activity was observed for the most sterically encumbered triphenylsilyl-substituted complex. Excellent activity and complete anti-Markonikov selectivity were obtained for a variety of benzylic and aliphatic primary and secondary amines. Interestingly