Process for the preparation of n-butylamines where n-butenylamines are firstly prepared by reacting 1,3-butadiene in the form of a 1,3-butadiene-containing mixture obtained during the cracking of petroleum fractions or during the dehydrogenation of LPG or LNG or from GTL technology with a primary amine and/or a secondary amine under hydroaminating conditions, and the resulting butenylamine(s) are then reacted in a second process stage under hydrogenating and transalkylating conditions.
Colloid and nanosized catalysts in organic synthesis: XVI.1 Continuous hydrogenation of carbonitriles catalyzed by nickel nanoparticles applied on a support
作者:Yu. V. Popov、V. M. Mokhov、S. E. Latyshova、D. N. Nebykov、A. O. Panov、M. Yu. Pletneva
DOI:10.1134/s107036321710005x
日期:2017.10
Conversion of the starting nitriles and selectivity of the products formation during continuous hydrogenation of various nitriles catalyzed by Ni-0/Ceokar-2 have been studied as functions of temperature. Performing the process at temperature 120-260 degrees C has led to the formation of a mixture of products containing di- and trialkylamines as well as the corresponding imines and enamines.
Colloid and nanosized catalysts in organic synthesis: XIV. Reductive amination and amidation of carbonitriles catalyzed by nickel nanoparticles
作者:Yu. V. Popov、V. M. Mokhov、K. V. Shcherbakova
DOI:10.1134/s107036321604006x
日期:2016.4
Hydrogenation of carbonitriles catalyzed by nickel nanoparticles in the presence of primary amines led to the predominant formation of unsymmetrical secondary amines. In the presence of secondary amines hydrogenation of nitrites provided enamines as main products. Hydrogenation of nitriles in the presence of formamide or acetamide afforded formyl or acetyl derivatives of primary amines.
Photoredox-Catalyzed C<sub>α</sub>–H Cyanation of Unactivated Secondary and Tertiary Aliphatic Amines: Late-Stage Functionalization and Mechanistic Studies
作者:Ozgur Yilmaz、Martins S. Oderinde、Marion H. Emmert
DOI:10.1021/acs.joc.8b01700
日期:2018.9.21
general, high-yielding amine Cα–H cyanation protocol via photoredox catalysis. Inexpensive NaCN is employed as the cyanidesource and air is the external oxidant, resulting in mild and highly functional group tolerant conditions. Notably, efficient Cα–H cyanations of secondary and tertiary aliphatic amines and of complex, biologically active compounds (drugs) can be performed using the established methodology