1114455-22-9Relevant academic research and scientific papers
Phosphine-catalyzed stereoselective dimerizations of ketenes
Ibrahim, Ahmad A.,Wei, Pei-Hsun,Harzmann, Gero D.,Nalla, Divya,Mondal, Mukulesh,Wheeler, Kraig A.,Kerrigan, Nessan J.
, (2020/12/21)
Full details of optimisation studies of the phosphine-catalyzed ketene homodimerization reaction and the detailed development of an asymmetric variant are discussed. Studies towards the development of a phosphine-catalyzed ketene heterodimerization reaction are revealed. A discussion of possible reaction mechanisms for the dimerization reactions, supported by spectroscopic analysis of intermediates and trapping experiments, is also presented.
Josiphos-catalyzed asymmetric homodimerization of ketoketenes
Ibrahim, Ahmad A.,Wei, Pei-Hsun,Harzmann, Gero D.,Kerrigan, Nessan J.
scheme or table, p. 7901 - 7904 (2011/03/19)
In this paper the development of a chiral phosphine-catalyzed homodimerization of ketoketenes that provides access to a variety of highly substituted ketoketene dimer β-lactones (11 examples) is reported. The Josiphos catalytic system displays good to exc
