2113-47-5Relevant academic research and scientific papers
An N-Heterocyclic Carbene-Nickel Half-Sandwich Complex as a Precatalyst for Suzuki-Miyaura Coupling of Aryl/Heteroaryl Halides with Aryl/Heteroarylboronic Acids
Ando, Shin,Matsunaga, Hirofumi,Ishizuka, Tadao
, p. 1266 - 1272 (2018/06/18)
A nickel half-sandwich complex supported by our original NHC ligand was developed as a robust precatalyst for Suzuki-Miyaura cross-coupling. The addition of PPh3 was a crucial element in the suppression of side reactions and in accelerating the cross-coupling reaction. By employing the optimal conditions, aryl-aryl, heteroaryl-aryl, and heteroaryl-heteroaryl couplings were achieved.
Kinetics of aminolysis of 2,4-dinitrophenyl acetate
Shunmugasundaram, A.,Thanulingam, T. Lekshmana,Ponnukalai, M.
, p. 757 - 760 (2007/10/02)
The second order rate constants for the reaction of 2,4-dinitrophenyl acetate with aniline and p- and o-substituted anilines have been reported in 10percent acetonitrile-90percent water (v/v) mixture at 25 deg, 30 deg, 35 deg and 40 deg C.In the reaction of p-substituted anilines, electron-releasing groups facilitate the reaction while electron-withdrawing groups retard it.The p-value is evaluated to be -2.33 +/- 0.16.The Broensted plot is also linear with βN = 0.792 +/- 0.027 at 30 deg C.The ΔS values are all negative as expected for bimolecular nucleophilic substitution reactions.In the case of o-substituted anilines, the rate data have been analyzed in terms of electronic and steric effects.
REACTION OF DIAZONIUM SALTS WITH TRANSITION METALS X. FORMYLATION OF ARENEDIAZONIUM SALTS WITH CARBON MONOXIDE AND SILYL HYDRIDES UNDER PALLADIUM CATALYSIS
Kikukawa, Kiyoshi,Totoki, Takatoshi,Wada, Fumio,Matsuda, Tsutomu
, p. 283 - 288 (2007/10/02)
Arenediazonium tetrafluoroborates (ArN2BF4 where Ar = X-C6H4; X = H, 2-Me, 3-Me, 4-Me, 4-MeO, 4-MeCO, 4-EtOCO, 2-Ph, 2-Cl, 3-Cl, 4-Cl, 4-Br, 4-I, 3-NO2 and 4-NO2) were easily converted to aromatic aldehydes (ArCHO) in good yields through the palladium-catalyzed reaction with CO and Et3SiH or polymethylhydrosiloxane (PHMS) at room temperature.
