syntheses of secondary and tertiaryamines by highlyefficientdirect N‐alkylation of primary and secondaryamines with alcohols or by deaminative self‐coupling of primary amines have been successfully realized by means of a heterogeneous bimetallic Pt–Sn/γ‐Al2O3 catalyst (0.5 wt % Pt, Pt/Sn molar ratio=1:3) through a borrowing‐hydrogen strategy. In the presence of oxygen, imines were also efficiently prepared
Heterogeneous bimetallic Pt–Sn/γ-Al2O3 catalyzed direct synthesis of diamines from N-alkylation of amines with diols through a borrowing hydrogen strategy
Direct synthesis of diamines has been efficiently realized from the N-alkylation of amines with diols by means of heterogeneous bimetallic Pt-Sn/gamma-Al2O3 catalyst (0.5 wt % Pt, molar ratio Pt:Sn = 1:3) through a 'Borrowing Hydrogen' strategy under ligand-free conditions. The present methodology provides an environmentally benign route to diamines. (C) 2011 Elsevier Ltd. All rights reserved.
The Reactions of Dibromoalkanes and o-(Bromoalkyl)-α-bromotoluenes with o-Substituted Anilines. The Synthesis of 1-Arylpyrrolidines and Related Compounds
作者:Armiger H. Sommers
DOI:10.1021/ja01592a026
日期:1956.6
US4009208A
申请人:——
公开号:US4009208A
公开(公告)日:1977-02-22
Le Sueur, Journal of the Chemical Society, 1913, vol. 103, p. 1124