24431-22-9Relevant academic research and scientific papers
Photoredox-Catalyzed Reductive Coupling of Aldehydes, Ketones, and Imines with Visible Light
Nakajima, Masaki,Fava, Eleonora,Loescher, Sebastian,Jiang, Zhen,Rueping, Magnus
, p. 8828 - 8832 (2015/11/27)
Ketyl radical and amino radical anions, valuable reactive intermediates for C-C bond-forming reactions, are accessible through a C=O/C=NR umpolung. However, their utilization in catalysis remains largely underdeveloped owing to the high reduction potential of carbonyl compounds and imines. In the context of photoredox catalysis, tertiary amines are commonly employed as sacrificial co-reducing agents. Herein, an additional role of the amine is proposed, in which it is essential for the organocatalytic substrate activation. The combination of photoredox catalysis and carbonyl/imine activation enables the reductive coupling of aldehydes, ketones, and imines under mild reaction conditions.
REDUCTIVE DIMERIZATION OF IMINES IN A Pb/Al BIMETAL REDOX SYSTEM
Tanaka, Hideo,Dhimane, Hamid,Fujita, Hiroyuki,Ikemoto, Youichi
, p. 3811 - 3814 (2007/10/02)
Reductive dimerization of N-alkylimines into vicinal diamines has been performed by the action of a catalytic amount of lead(II) bromide and aluminum (1 equiv.) in THF containing trifluoroacetic acid (TFA) or aluminum(III) bromide.
Photoreductive Dimerisation of Imines and Formation of Imidazolidines
Pandey, G. P.
, p. 467 - 470 (2007/10/02)
Irradiation of a series of benzaldehyde-N-benzylimines in 95percent ethanol or 2-propanol yields meso- and dl-dihydrodimers of imines and some imidazolidine derivatives.The products have been characterized on the basis of mixed m.p., elemental analyses and spectral (IR and PMR) data.
