6096-36-2Relevant articles and documents
N-alkylation of 2-methyl-2-imidazolines by phase transfer catalysis without solvent
Chen, Xu,Wang, Xiaolun,Wang, Hui,Lian, Hongzhen,Pan, Yi,Shi, Yaozeng
, p. 3025 - 3030 (1999)
1-Alkyl-2-methyl-2-imidazolines were obtained in good to excellent yields by alkylation of 2-methyl-2-imidazoline with organic halides in the presence of phase transfer catalysis and absence of solvent.
Electrophilically activated nitroalkanes in reaction with aliphatic diamines en route to imidazolines
Aksenov, Alexander V.,Aksenov, Nicolai A.,Arutiunov, Nikolai A.,Malyuga, Vladimir V.,Ovcharov, Sergey N.,Rubin, Michael
, p. 39458 - 39465 (2019/12/14)
A novel synthetic methodology for the assembly of imidazolines via an unusual reaction between nitroalkanes and aliphatic 1,2-diamines in the presence of phosphorous acid is described. In contrast to the related highly efficient preparation of benzimidazoles from aromatic amines, this process represents a major synthetic challenge and for a long time was elusive. Analysis of the method limitations is provided.
Alkylation of an imidazolidine enaminoester: A new sequence for the c(α)-alkylation of 4,5-dihydroimidazoles
Jones, Raymond C. F.,Patel, Pravin,Hirst, Simon C.,Turner, Ian
, p. 11781 - 11790 (2007/10/03)
1-Benzyl-2-(ethoxycarbonyllmethylene)-2,3,4,5-tetrahydroimidazole undergoes preferred C-alkylation with halogenonakanes, dihalogenoalkanes and epoxides: subsequent removal of of the ethoxycarbonyl group provides a new route to 2-alkyl-4,5-dihydroimidazoles. 1,3-Dihalogenoalkanes afford imidazo[1,2-a]pyridines via C,N-dialkylation.