4-Aminofurazan-3-carboxylic Acid Iminoester in Reactions with N,O-Nucleophiles View Full Text


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Article Info

DATE

2002-06

AUTHORS

A. V. Sergievskii, O. A. Krasnoshek, S. F. Mel'nikova, I. V. Tselinskii

ABSTRACT

Reactions of 4-aminofurazan-3-carboxylic acid iminoester with o-aminophenol and ethylenediamine give rise respectively to 4-(1,3-benzoxazol-2-yl)- and 1-(4,5-dihydro-1H-imidazol-2-yl)-1,2,5-oxadiazol-3-amines, with aminoethanol arises 2-[(Z)-1-amino-1-(4-amino-1,2,5-oxadiazol-3-yl)methylideneamino]-1-ethanol. Treating of 3-amino-4-(1H-benzo[d]imidazol-2-yl)-1,2,5-oxadiazole with triethyl orthoformate in acetic anhydride yielded benzo[4,5]imidazo[1,2-c][1,2,5]oxadiazolo[3,4-e]pyrimidine, and alkylation with haloalkanes furnished 3-amino-4-(1-R-benzo[d]imidazol-2-yl)-1,2,5-oxadiazoles.

PAGES

872-874

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1020307708515

DOI

http://dx.doi.org/10.1023/a:1020307708515

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1041867656


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