35755-82-9Relevant academic research and scientific papers
Synthesis, structure and catalytic activity of novel five-membered Pd(II) and Pt(II) metallaheterocycles based on 1,2-bis(3,5-dimethylisoxazol-4-yl-methylsulfanyl)ethane
Akhmadiev,Mescheryakova,Khisamutdinov,Lobov,Abdullin,Ibragimov,Kunakova,Akhmetova
, p. 54 - 62 (2018)
Novel palladium(II) and platinum(II) heterocycles were synthesized based 1,2-bis(3,5-dimethylisoxazol-4-ylmethylsulfanyl)ethane. According to X-ray Crystallographic data in molecule there are two bonds between divalent sulfur atoms and metal atom S-Pd-S to form a five-membered palladacycle in the twist-conformation with trans orientation of isoxazole rings. The syn-anti-isomerization for the palladaheterocycle in the solution is observed. The activation energy ΔH≠ ΔS≠ and rate of reversible syn-anti-isomerization were established by the dynamic 1H NMR method and quantum-chemical calculations. Proposed mechanism of syn-anti-isomerization of palladacycle via an open-chain forms was offered. It was shown that metallaheterocycle - cis-S,S-dichloro 1,2-[di-(3,5-dimethylisoxazol-4-yl)methylsulfanyl]ethane palladium(II) is efficient catalyst in the amination reaction of allyl phenyl ether and Sonogashira reaction.
REGIO- AND STEREOSELECTIVE METHODS OF SYNTHESIS OF HIGHER UNSATURATED SULFIDES AND AMINES WITH PARTICIPATION OF METAL COMPLEX CATALYSTS
Dzhemilev, U. M.,Ibragimov, A. G.,Morozov, A. B.,Muslukhov, R. R.,Tolstikov, G. A.
, p. 566 - 572 (2007/10/02)
Regio- and stereoselective methods of synthesis of octadienyl sulfides and amines that are based on the reaction of mercaptides and amines of aluminum with allyl electrophiles catalyzed by complexes of Pd and Zr have been developed.
TELOMERIZATION OF AMINO ACIDS WITH BUTADIENE, CATALYZED BY PALLADIUM COMPLEXES
Dzhemilev, U. M.,Fakhretdinov, R. N.,Telin, A. G.
, p. 1447 - 1456 (2007/10/02)
The telomerization of α, β, γ, and ε-amino acids having various structures with butadiene under the influence of the three-component palladium catalyst Pd(acac)2-PPh3-AlEt3 was investigated in DMSO-toluene solution.The α and ε-aliphatic and also the α, β, and γ-aromatic amino acids react with butadiene, giving the products from octadienylation at the amino group exclusively.Under the conditions of telomerization aliphatic β-amino acids are cleaved with the formation of unsaturated tertiary amines. in the case of aliphatic γ-amino acids it is possible to obtain telomers alkylated at the carbonyl group.
