2513-66-8Relevant academic research and scientific papers
BENTONITE K10 CLAY, AN EFFICIENT CATALYST FOR THE FORMATION OF NITROGEN DERIVATIVES
Eynde, Jean Jacques Vanden,Mayence, Annie,Lor, Pascal,Haverbeke, Yves Van
, p. 387 - 392 (2007/10/02)
Bentonite K10 clay has been used to catalyze the formation of enamino carbonyl derivatives, 2-methyl-1H-benzimidazoles, Hantzsch 1,4-dihydropyridines, Hantzsch pyridines, 2-substituted 1,3-diphenylimidazolidines, and tetrahydropyranylbenzazoles.
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone, a Mild Catalyst for the Formation of Carbon-Nitrogen Bonds
Eynde, Jean Jacques Vanden,Delfosse, Florence,Lor, Pascal,Haverbeke, Yves Van
, p. 5813 - 5818 (2007/10/02)
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) catalyzes the preparation of N-tetrahydropyranylbenzazoles, 2-substituted 1,3-diphenylimidazolidines, and N-(arylmethylene)benzene-1,2-diamines.In the latter case, use of one equivalent of DDQ provides a novel one-pot method for the synthesis of 1H-benzimidazoles.
NOVEL SYNTHESES OF HETEROCYCLES WITH N-(1-HALOALKYL)AZINIUM HALIDES PART 1. PREPARATION OF IMIDAZOLIDINES
Eynde, J.-J. Vanden,Mayence, A.,Maquestiau, A.,Anders, E.
, p. 233 - 236 (2007/10/02)
N-(1-Chloroalkyl)pyridinium chlorides, prepared from thionyl chloride, pyridine, and an aldehyde, readily react with N,N'-disubstituted 1,2-ethanediamine to yield imidazolidines under mild and neutral conditions.
