29337-73-3Relevant academic research and scientific papers
Determination the structure of new some imines by physical and chemical methods
Al-Dabbagh, Asmaa B.,Othman, Arwa M.
, p. 6181 - 6194 (2021/11/08)
This paper is concerned with the preparation of eight new imines by standard methods; These having syn oxime and Schiff base structures. They are derived from aromatic aldehydes with suitable primary amines, depending on their structures. This investigati
Consecutive condensation, C-N and N-N bond formations: A copper-catalyzed one-pot three-component synthesis of 2 H -indazole
Kumar, Manian Rajesh,Park, Ahbyeol,Park, Namjin,Lee, Sunwoo
scheme or table, p. 3542 - 3545 (2011/09/12)
2H-Indazoles are synthesized using copper-catalyzed, one-pot, three-component reactions of 2-bromobenzaldehydes, primary amines, and sodium azide. A copper catalyst plays the key role in the formation of C-N and N-N bonds. This method has a broad substrate scope with a high tolerance for a variety of functional groups.
An approach to fused pyrimidine derivatives via Schiff bases of aromatic ortho-nitrocarbaldehydes. An investigation of substituent effects on the reaction course
Ostrowski,Wolniewicz
, p. 705 - 713 (2007/10/03)
The synthesis of fused pyrimidines from the Schiff bases of aromatic ortho-nitrocarbaldehydes is reported. The Schiff bases after selective reduction of the nitro group on 10% Pd/C, followed by condensation of the amines formed with orthoesters, are transformed to the corresponding imidates. Heating of the latter in a sealed tube with an excess of ammonia (or with ammonia in ethanol) gives fused pyrimidines. The influence of various substituents in the aromatic ring of the imine moiety of the Schiff bases on the overall yield of fused pyrimidine derivatives has been investigated. Moderate electron-withdrawing groups gave the best results.
