78956-18-0Relevant academic research and scientific papers
Enhancing Ligand-Free Fe-Catalyzed Aminocarbonylation of Alkynes by ZrF4
Huang, Zijun,Dong, Yanan,Li, Yudong,Makha, Mohamed,Li, Yuehui
, p. 5236 - 5240 (2019/09/03)
Zirconium fluoride was utilized to promote efficiently iron-catalyzed aminocarbonylation between alkynes and amines without the use of extra ligands. In particular, this new system is applicable to a wide range of amine and alkyne substrates affording α,β-unsaturated amides in good to excellent yields. Preliminary mechanistic studies reveal the activation model involving interactions of ZF4 with both iron catalyst and amine substrates.
Substituent Effects on the CC Bond Strength, 17. - Formation and Stability of α-Carbamoylbenzyl Radicals
Zueffle, Stephan,Beckhaus, Hans-Dieter,Ruechardt, Christoph
, p. 877 - 880 (2007/10/02)
Products and kinetics of the homolytic thermolyses reactions of the three tertiary amides 6a-c of 2,3,3-triphenylpropanoic acid were studied in solution.The steric effects on the C-C bond homolysis processes were evaluated from MM2 calculations.Taking this into account, we deduced radical stabilization enthalpies RSE for the α-carbamoylbenzyl radicals 3a-c from the activation enthalpies ΔH(excit.) . - Key Words: Bond cleavage, C-C kinetics of / Radicals, stability of
On the Reaction of Diphenylcyclopropenone, its Functional Derivatives and Imonium Salts with Amines
Eicher, Theophil,Boehm, Siegfried,Ehrhardt, Heinz,Harth, Robert,Lerch, Dieter
, p. 765 - 788 (2007/10/02)
The reactions of cyclopropenones 1, 2, cyclopropenone imines 3 and cyclopropenone imonium cations 5 with amines of different type are investigated and the structure of the products obtained is elucidated by means of spectral data and chemical behavior.The possible reaction modes and mechanisms are discussed.
