123863-25-2Relevant academic research and scientific papers
A New Reaction of Aminocarbene Complexes of Chromium upon Alkyne Insertions: Deoxygenation Rearrangement of Ketene Intermediates. Formation and X-Ray Structure of a Tetrahydroindolizine Complex
Denise, B.,Goumont, R.,Parlier, A.,Rudler, H.,Daran, J. C.,Vaissermann, J.
, p. 1238 - 1240 (1990)
Aminocarbene complexes (1) of chromium bearing suitable substituents on nitrogen react with alkynes to give, besides the expected heterocyclic compounds (5) and (6) originating from cascade alkyne-CO insertion-rearrangement reactions, deoxygenation-rearra
Reaction of aminocarbene complexes of chromium with alkynes. 5. Influence of the ring size on the product distribution. Formation of pyrroles from pyrrolidine and its derivative-substituted carbene complexes
Parlier, Andrée,Rudler, Michèle,Rudler, Henri,Goumont, Regis,Daran, Jean-Claude,Vaissermann, Jacqueline
, p. 2760 - 2774 (2008/10/09)
A series of aminocarbene complexes of chromium derived from piperidine (1), hexa- and heptamethyleneimine (4) and (8), pyrrolidine (13a-d, R1 = Me, H, Ph, thienyl), perhydroindole (21), thiazolidine (24a,b, R1 = Me, Ph), pyrroline (3
Unexpected ring opening of cycloaminocarbene complexes of chromium upon alkyne insertion reactions
Rudler, H.,Parlier, A.,Yefsah, R.,Denise, B.,Daran, J. C.,et al.
, p. 245 - 272 (2007/10/02)
Aminocarbenechromium complexes of the general structure (CO)5Cr=C(R)N(CH2)nXCH2 (N = 0, X = CH2; n = 1, X = CH2; n = 1 X = CH=CH; n = 2 X = CH=CH; R = CH3, Ph) react with alkynes to give insertion of one or two molecules of alkyne and one molecule of CO, and C-N bond cleavage, new polycyclic heterocycles.The reactions of the pyrroline-, the tetrahydropyridine-, the pyrrolidine- and the methylaziridine-substituted complexes are mainly considered, and the results of X-ray structural studies of the new products are presented.The mechanism of the rearrangement of a 1,5 dipole is discussed.
