951-48-4Relevant articles and documents
Synthesis of novel quinazolines via nucleophilic cycloaddition of 2-amino-N′-arylbenzimidamides with dimethyl acetylenedicarboxylate and 2-(dicyanomethylene)indan-1,3-dione
El-Shaieb, Kamal M.,Mohamed, Asmaa H.
, p. 1849 - 1856 (2019/11/03)
Abstract: Synthesis of novel tetrahydroquinazoline-2-carboxylate and arylaminoquinazoline-2-carboxylate in good yields has been established via the nucleophilic cycloaddition of 2-amino-N′-arylbenzimidamides on dimethyl acetylenedicarboxylate. Moreover, studying the reaction of 2-amino-N′-arylbenzimidamides with 2-(dicyanomethylene)indan-1,3-dione to give 3,4-dihydroquinazolin derivatives. The results obtained from IR, 1H NMR, and 13C NMR data as well as the mass spectra are in agreement with the assigned structures. A plausible mechanism for the formation of the products is presented. Graphic abstract: [Figure not available: see fulltext.].
Synthesis of 1,3,2-Benzodiazaphosphorine and 1,3,2-Benzodiazaphosphorine-2-sulfide
Hichri, Sarra,Abderrahim, Raoudha
, p. 289 - 292 (2016/05/24)
Background: Benzodiazaphosphorines have many biological activities such as fungicidal and antitumor. In this work we are interested to synthesize them in order to test their activities in future work. The probable mechanism of obtained benzodiazaphosphorines is discussed. Methods: The obtained benzodiazaphosphorines were characterized using FT-IR, NMR 1H and 13C spectroscopy and elemental analysis. Results: A series of new benzodiazaphosphorines products synthesized were purified by crystallization and obtained with good yields. Conclusion: In this paper we have synthesized a series of benzodiazaphosphorine and benzodiazaphosphorine sulfide which are identified using FT-IR, NMR spectroscopy and elemental analysis. The prepared compounds will be subsequently studied in order to tested their biological activities.
The first indazolimine-arylazobenzonitrile rearrangement
El-Shaieb, Kamal M.,Ernst, Ludger,Kerssebaum, Rainer
scheme or table, p. 238 - 242 (2012/06/30)
A series of 2-arylazobenzonitriles (5a-f) have been obtained through a novel indazolimine-arylazobenzonitrile rearrangement. The products 5a-f were fully characterized and their structure elucidated on the basis of spectroscopic and analytical data. The mechanism of formation of 5a-f is discussed.