Comment on “palladium catalyzed ethylene—carbon monoxide alternating copolymerization”
نویسندگان
چکیده
منابع مشابه
Palladium(II)-catalyzed copolymerization of styrenes with carbon monoxide: mechanism of chain propagation and chain transfer.
A mechanistic interpretation of the [(1,10-phenanthroline)Pd(CH(3))(CH(3)CN)](+)[BArF](-) (1a) and [(2,2'-bipyridine)Pd(CH(3))(CH(3)CN)](+)[BArF](-) (1b) (BArF = 3,5-(CF(3))(2)-C(6)H(3)) catalyzed perfectly alternating copolymerization of styrenes with CO is reported. The copolymerization in CH(2)Cl(2) or chlorobenzene has been found to be first order in styrene and inverse first order in CO co...
متن کاملPalladium Catalyzed Alternating Cooligomerization of Ethylene and Carbon Monoxide to Unsaturated Ketones
Wilhelm Keim*. H eiko Maas, Stefan M ecking Institut für Technische Chemie der RW TH A achen, W orringer Weg 1, D-52074 Aachen, G erm any Dedicated to Prof. Dr. Dr. h.c. mult. Günther Wilke on the occasion o f his 70th birthday Z. N aturforsch. 50b, 430-438 (1995); received Septem ber 15, 1994 Cooligom erization, C arbonylation. Palladium , Hemilabile, U nsaturated Ketone Cationic palladium cat...
متن کاملMechanistic Studies of the Palladium-Catalyzed Copolymerization of Ethylene and R-Olefins with Methyl Acrylate
Mechanistic aspects of palladium-catalyzed insertion copolymerizations of ethylene and R-olefins with methyl acrylate to give high molar mass polymers are described. Complexes [(N∧N)Pd(CH2)3C(O)OMe]BAr′4 (2) or [(N∧N)Pd(CH3)(L)]BAr′4 (1: L ) OEt2; 3: L t NCMe; 4: L t NCAr′) (N∧N ≡ ArNdC(R)-C(R)dNAr, e.g., Ar t 2,6-C6H3(i-Pr)2, R t H (a), Me (b); Ar′ t 3,5-C6H3(CF3)2) with bulky substituted R-di...
متن کاملAlternating copolymerization of carbon dioxide and cyclohexene oxide catalyzed by salen CoIII(acetate) complexes
A series of CoIII carboxylate based upon N,N,O,O-tetradentate Schiff base ligand framework have been prepared. X-ray diffraction analysis confirms that these Schiff base CoIII carboxylate are all monomeric species with a six-coordinated central Co in their solid structures. The activities and polycarbonate selectivity of these complexes toward the copolymerization of epoxide (cyclohexene oxide ...
متن کاملPalladium-catalyzed ring-opening thiocarbonylation of vinylcyclopropanes with thiols and carbon monoxide.
Palladium-catalyzed ring-opening thiocarbonylation of vinylcyclopropanes (VCPs) with thiols and carbon monoxide affords the corresponding unsaturated thioesters in moderate to excellent yields. This reaction provides a general method for the ring-opening thiocarbonylation of VCPs. It further demonstrates the utility of transition metal catalysts for the synthesis of organosulfur compounds.
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ژورنال
عنوان ژورنال: Journal of Polymer Science Part A: Polymer Chemistry
سال: 1993
ISSN: 0887-624X,1099-0518
DOI: 10.1002/pola.1993.080311128