New C–N and C–C bond forming reactions catalyzed by titanium complexes
作者:Aaron L. Odom
DOI:10.1039/b415701j
日期:——
especially useful in generating active catalysts for hydroamination and hydrohydrazination. From these reactions, new methodologies for the synthesis of imines, hydrazones, alpha,beta-unsaturated imines, pyridines, indoles, and pyrroles have developed. In addition, a new reaction that is mechanistically related to hydroamination, alkyne iminoamination, has been discovered. Iminoamination, which is a
Photoreduction of imines. An environmentally friendly approach to obtain amines
作者:María Ortega、Miguel A. Rodríguez、Pedro J. Campos
DOI:10.1016/j.tet.2005.09.047
日期:2005.12
The photoreduction of different imines to amines in alcoholic solvents is reported. The reduction involves a versatile and chemoselective methodology that is environmentally friendly in that it avoids the use of metal hydrides and other dangerous reducing agents.
Synthesis and Reactivity of New β-Enamino Acid Derivatives: A Simple and General Approach to β-Enamino Esters and Thioesters
作者:Santos Fustero、Marta García de la Torre、Viviana Jofré,、Raquel Pérez Carlón、Antonio Navarro、Antonio Simón Fuentes、Juan Server Carrió
DOI:10.1021/jo9809480
日期:1998.11.1
A new strategy has been developed for the synthesis of several beta-enamino acid derivatives. N,N'-Carbonyldiimidazole has been used as C-acylating agent of methyl ketimines, providing a direct and simple route to new beta-enamino carbonyl imidazole derivatives 2. These derivatives 2 were cleanly and efficiently transformed into beta-enamino esters 4 (X = O) and thioesters 4 (X = S) by reaction with a great variety of alcohols and thiols, including tertiary ones. Alternative and complementary routes to compounds 4 were also investigated. In addition, beta-keto esters 6 have been obtained by mild acid hydrolysis of beta-enamino esters 4.