A Cu(OAc)2-mediated intramolecular aromatic C–H amination proceeds with the aid of a picolinamide-type bidentate coordination group to deliver the corresponding indolines in good yields. The reaction occurs smoothly even under noble-metal-free conditions, and in some cases the use of an MnO2 terminal oxidant renders the process catalytic in Cu. The mild oxidation aptitude of Cu(OAc)2 and/or MnO2 accommodates
Influence of a silyl group on an allylic position. A theoretical approach
作者:G. Déléris、J.P. Pillot、J.C. Rayez
DOI:10.1016/0040-4020(80)80114-1
日期:1980.1
Allylsilanes show in certain cases a behaviour towards electrophiles which is opposite to that of its carbon homologues. Theoretical calculations using Dewar's MINDO/3 method performed on 3-methyl 3-butenyl trimethylsilane and 2-methyl 2-butene show that geometrical optimization leads to a silicon-allylic carbon bond nearly parallel to the double bond π cloud, and both net atomic charges and HOMO coefficients
N-methylketimines can be synthesized by controlled reactions of nitriles, having an α activated methylene group, with methyllithium and methyliodide. Cyanide anion can be displaced from a tertiery carbon attached to naphthalene in a radical anion process.