160148-12-9Relevant articles and documents
Novel 3d-metal complexes with 1,2-diamino-3-(2-benzothiazolyl)-4(5H)-ketopyrrole: Synthesis, spectroscopic and structural investigations
Nikitin, Sergiy O.,Lampeka, Rostyslav D.,Volovenko, Yulian M.,Palamarchuk, Gennady V.,Shishkin, Oleg V.
, p. 1363 - 1369 (2010)
A series of new 3d-metal complexes have been prepared by the reaction of M(CH3COO)2 (M = Zn(II), Co(II), Ni(II)) and 1,2-diamino-3-(2-benzothiazolyl)-4(5H)-ketopyrrole (HL) in a methanol (3) or a methanol/dmf (1, 2) medium. All the complexes have been studied by elemental analyses, electronic and IR spectroscopies. The zinc(II) complex 1 and the ligand HL have been investigated using the method of 1H NMR-spectroscopy at various temperatures. The disappearance of the signal from one proton of the amino group H(5) in the spectrum of complex 1 confirmed the existence of the ligand in the deprotonated form. According to the data of the 1H NMR-spectroscopy, the ligand HL is coordinated to zinc(II) through the nitrogen atom of the deprotonated amino group and the nitrogen atom of the benzothiazole substituent. These data are in agreement with X-ray structural studies for the ligand HL and the zinc(II) complex 1.
Facile Synthesis of 2-Furyl-, 2-Pyrrolyl-, 2-Imidazolyl-, and Pyrrolo-Azoles from 2-Substituted Methylazoles
Chabaka, Laila M.,Swellem, Randa H.,Shafik, Nancy A.
, p. 1317 - 1326 (2007/10/02)
The title ring systems were synthesized through one step reactions starting with the α-acyl-2-cyanomethylbenzoazoles (2a-d). This was achieved via their reactions with potassium cyanide, hydrazine hydrate, aniline or guanidine, respectively. Analogous results were obtained on applying these reactions to the α-acyl-2-cyanomethylimidazopyridines (9a, b). Key words: azoles synthesis
