A free radical Mannich type reaction: selective α-CH aminomethylation of ethers by Ti(III)/t-BuOOH system under aqueous acidic conditions
作者:Angelo Clerici、Rosalba Cannella、Nadia Pastori、Walter Panzeri、Ombretta Porta
DOI:10.1016/j.tet.2006.04.014
日期:2006.6
tert-butylhydroperoxide, selectively abstracts an α-H atom from ethers. The resulting α-ethereal radicals add to the C-atom of methylene iminium salts, formed in situ under aqueous acidic conditions, leading to a one-pot aminomethylation of ethers at room temperature. The aminoalkylation of ethers is also considered and the role of the metal ion is discussed.
Attempts to find new Antimalarials. Phenanthryl- and Quinolyl-Alkamines of the type Rchoh (CH<sub>2</sub>)<sub>3-11</sub>N(C<sub>4</sub>H<sub>9</sub>)<sub>2</sub>
作者:T. D. Perrine
DOI:10.1021/jo50016a015
日期:1953.10
One-pot synthesis of secondary or tertiary amines from alcohols and amines via alkoxyphosphonium salts
作者:Paul Frøyen、Paul Juvvik
DOI:10.1016/0040-4039(95)02046-2
日期:1995.12
Secondary or tertiaryamines may be prepared from primary alcohols and primary or secondary amines by treating triphenylphosphine with N-bromosuccinimide (NBS) in the presence of the alcohol at low temperature, followed by addition of the amine and heating for about 1 h. The yield of amine is good to fair, decreasing sharply with sterically congested alcohols and starting amines.