15190-67-7Relevant articles and documents
Are multicomponent strecker reactions of diketones with diamines under high pressure amenable to heterocyclic synthesis?
Kumamoto, Koji,Iida, Hirokazu,Hamana, Hiroshi,Kotsuki, Hiyoshizo,Matsumoto, Kiyoshi
, p. 675 - 681 (2005)
Employing double Strecker strategy, two new heterocyclic compounds, 5,6,11,12-tetrahydro-6,11-dimethyldibenzo[b,f][1,4]diazocine-6,11-dicarbonitrile and 1,2,3,4,5,10-hexahydrophenazine-4a, 10a-dicarbonitrile, were prepared in one step albeit in low yields. The reaction has proven to be very limited, but such a sterically hindered amine as N-methylaniline underwent Strecker reaction with benzaldehyde and TMSCN to give the corresponding α-amino nitriles.
Iridium-Catalyzed Reductive Strecker Reaction for Late-Stage Amide and Lactam Cyanation
Fuentes de Arriba, ángel L.,Lenci, Elena,Sonawane, Mahendra,Formery, Odilon,Dixon, Darren J.
, p. 3655 - 3659 (2017/03/21)
A new iridium-catalyzed reductive Strecker reaction for the direct and efficient formation of α-amino nitrile products from a broad range of (hetero)aromatic and aliphatic tertiary amides, and N-alkyl lactams is reported. The protocol exploits the mild and highly chemoselective reduction of the amide and lactam functionalities using IrCl(CO)[P(C6H5)3]2 (Vaska's complex) in the presence of tetramethyldisiloxane, as a reductant, to directly generate hemiaminal species able to undergo substitution by cyanide upon treatment with TMSCN (TMS=trimethylsilyl). The protocol is simple to perform, broad in scope, efficient (up to 99 % yield), and has been successfully applied to the late-stage functionalization of amide- and lactam-containing drugs, and naturally occurring alkaloids, as well as for the selective cyanation of the carbonyl carbon atom linked to the N atom of proline residues within di- and tripeptides.