1-Alkylation of 4,5-Dicyanoimidazole by Ortho Esters

Autor:	Stephen Joseph Johnson
Rok vydání:	1991
Předmět:	chemistry.chemical_compound Chemistry Yield (chemistry) Reagent One pot reaction Diaminomaleonitrile Organic Chemistry Organic chemistry Orthoester Alkylation Catalysis
Zdroj:	Synthesis. 1991:75-78
ISSN:	1437-210X 0039-7881
DOI:	10.1055/s-1991-26384
Popis:	Reexamination of the reaction of ortho esters with diamino-malconitrile (1) or 4,5-dicyanoimidazole (3a) revealed that 1-alkyl-4,5-dicyanoimidazoles 4a-f can be obtained in high yield in a one-pot procedure without any additional reagent. This simple procedure is economically competitive with other known methods. Several products previously reported for similar reactions have been shown to be the imidates of diaminomaleonitrile, 2b and 7
Databáze:	OpenAIRE
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