58896-23-4Relevant academic research and scientific papers
Ruthenium(ii)-catalysed 1,2-selective hydroboration of aldazines
Gunanathan, Chidambaram,Pradhan, Subham,Thiyagarajan, Subramanian
supporting information, p. 7147 - 7151 (2021/08/30)
Herein, an efficient and simple catalytic method for the selective and partial reduction of aldazines using ruthenium catalyst [Ru(p-cymene)Cl2]2 (1) has been accomplished. Under mild conditions, aldazines undergo the addition of pinacolborane in the presence of a ruthenium catalyst, which delivered N-boryl-N-benzyl hydrazone products. Notably, the reaction is highly selective, and results in exclusive mono-hydroboration and desymmetrization of symmetrical aldazines. Mechanistic studies indicate the involvement of in situ formed intermediate [{(η6-p-cymene)RuCl}2(μ-H-μ-Cl)] (1a) in this selective hydroboration.
Aldazines in the Castagnoli-Cushman Reaction
Mikheyev, Alexander,Kantin, Grigory,Krasavin, Mikhail
, p. 2076 - 2086 (2018/03/29)
Aldazines were employed in the Castagnoli-Cushman reaction of homophthalic anhydride for the first time. The reaction proved to be distinctly diastereoselective when conducted at room temperature in acetonitrile, yielding predominantly the kinetic cis -co
Rh-Catalyzed Regioselective ortho-C-H Carbenoid Insertion of Diarylazines
Yu, Yunliang,Kuai, Changsheng,Chauvin, Remi,Tian, Nian,Ma, Shuangshuang,Cui, Xiuling
, p. 8611 - 8616 (2017/08/23)
The Rh-catalyzed ortho-C-H carbenoid insertion reaction of diarylazines with diazo compounds has been developed. A wide range of ortho-substituted diarylazines have been obtained in moderate to high yields with high regioselectivity at room temperature. The hydrolysis of the products could release ketones or aldehydes, giving access to aromatic 1,5-keto-diesters as valuable synthons for further chemical transformations.
Microwave-assisted synthesis of 1-hydrazinophosphonates via the reaction of aldazines with dialkyl phosphite
Kaboudin, Babak,Alipour, Soheil
experimental part, p. 304 - 308 (2012/07/27)
A simple, efficient, and novel method has been developed for the synthesis of 1-hydrazinophosphonic acids from aldazines. As described below, treatment of aldazines with diethyl phosphite gives the corresponding 1-hydrazinophosphonic acids in good yields. The reaction proceeds under microwave irradiation at 110°C and neutral condition without any additives such as base, acid, or catalyst. This method is easy, rapid, and gives good yields for the 1-hydrazinophosphonic acids.
ZEOLITE-CuNaY CATALYZED DECOMPOSITION OF ARYLDIAZOMETHANE
Onaka, Makoto,Kita, Hiroshi,Izumi, Yusuke
, p. 1895 - 1898 (2007/10/02)
Decomposition of aryldiazomethanes is catalyzed by copper ion-exchanged Y-type zeolite to afford cis-1,2-diarylethylenes in high selectivity.The catalytic activity and selectivity are found to be affected by the exchange level of copper ions in zeolite and the solvent used.
Charge-tansfer complexes of substituted aromatic azines and ?-acceptors
Mourad, Aboul-Fetouh E.
, p. 933 - 938 (2007/10/02)
Charge-transfer complexes of symmetrically substituted aromatic azines with tetracyanoethylene (TCNE) and 1,4-benzoquinones in methylene chloride have been investigated spectrophotometrically.The spectral data, molar extinction coefficients and transition energies of the complexes formed as well as the ionization potentials of the electron donors are reported.Both BENSI-HILDEBRAND and JOB methods have been applied in determination of association and apparent formation constants respectively.Substituent effect on charge-transfer equilibria of the substituted azines has been discussed.
