Acylamino Chromium Carbene Complexes: Direct Carbonyl Insertion, Formation of Münchnones, and Trapping with Dipolarophiles
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منابع مشابه
Alkyne competition in the benzannulation reaction with chromium carbene complexes.
The benzannulation reaction of Fischer carbene complexes is investigated under conditions where the reaction of the carbene complex is occurring in the presence of two different alkynes. A series of competition experiments are examined where the effects of various structural factors are explored by pitting 10 different carbene complexes with 11 different alkynes. Terminal alkynes will react sel...
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A new family of relatively stable Cr(V) complexes, [Cr(V)O(L)(2)](-) (LH(2) = RC(O)NHOH, R = Me, Ph, 2-HO-Ph, or HONHC(O)(CH(2))(6)), has been obtained by the reactions of hydroxamic acids with Cr(VI) in polar aprotic solvents. Similar reactions in aqueous solutions led to the formation of transient Cr(V) species. All complexes have been characterized by electron paramagnetic resonance spectros...
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G. González*, C. Díaz Faculty of Sciences. University of Chile, Casilla 653, Santiago, Chile H. Binder University of Stuttgart, D-7000 Stuttgart 80, F R G Z. Naturforsch. 43b, 513-516 (1988); received September 17, 1987 ESCA Studies, N.N'-Thiobisamines, Diaminosulfanes, Chromiumpentacarbonyl Complexes The X-ray photoelectron spectra of some N,N'-thiobisamines and of two of its complexes with Cr...
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A series of ferrocenyl and thienyl mono- and biscarbene chromium(0) complexes 1-6 were synthesised. The complexes were characterised both spectroscopically and electrochemically, and the single crystal X-ray structure of 3 was determined. Electrochemical measurements in CH2Cl2 revealed that the carbene double bond of 1-6 is reduced to an anion radical, (-)Cr-C˙ at formal reduction potentials <-...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2000
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja9934753