Struktur und reaktivität aliphatischer diazoverbindungen—IX
作者:W. Jugelt、D. Schmidt
DOI:10.1016/s0040-4020(01)82670-3
日期:——
Hammett relationship for both reaction series VI and VII. However the reaction constants ϱ are different in sign. The thermal decomposition in dioxan-water mixtures yields diphenylacetic acid and the benzoin ester of diphenylacetic acid. The rate of thermolysis increases rapidly with increasing dielectric constant of the solvent mixture. No apparent solvent deuterium isotope effect was observed within
Intermolecular cyclization processes in the anodic oxidation of ketene imines: formation of heterocyclic dimers and trimers
作者:James Y. Becker、Elias Shakkour、J. A. P. R. Sarma
DOI:10.1021/jo00039a038
日期:1992.6
Nunes, Jose; Kascheres, Albert, Journal of Heterocyclic Chemistry, 1997, vol. 34, # 1, p. 341 - 344
作者:Nunes, Jose、Kascheres, Albert
DOI:——
日期:——
Electrochemical oxidation of amides of type Ph2CHCONHAr
作者:Tatiana Golub、James Y. Becker
DOI:10.1039/c2ob06878h
日期:——
Anodic oxidation of N-aryl-2,2-diphenylacetamides in acetonitrile undergoes three types of bond-cleavage, one between the benzylic carbon and the carbonyl group, the second between a carbonyl and 'N', and the third between the 'N' atom and aryl group. The selectivity of the cleavage and nature of emerged products is highly dependent on the nature of substituent attached to the aryl group. For example
Diiminium Nucleophile Adducts Are Stable and Convenient Strong Lewis Acids**
作者:Niklas Bormann、Jas S. Ward、Ann Kathrin Bergmann、Paula Wenz、Kari Rissanen、Yiwei Gong、Wolf‐Benedikt Hatz、Alexander Burbaum、Florian F. Mulks
DOI:10.1002/chem.202302089
日期:2023.10.18
Diiminium nucleophile adducts, convenient Lewis acids that satisfy some measures for superacidity, have been synthesised by coordination with stabilising pyridine donors. Even in their abstraction of half an equivalent of oxide from a P=O bond, favourable abstraction kinetics were observed. Our preliminary results combined with price and safety considerations suggest that the adducts are excellent acylation