Metathesis Reaction Using Carbene Complexes
نویسندگان
چکیده
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...
متن کاملBis(Cyclic Alkyl Amino Carbene) Ruthenium Complexes: A Versatile, Highly Efficient Tool for Olefin Metathesis
The state-of-the-art in olefin metathesis is application of N-heterocyclic carbene (NHC)-containing ruthenium alkylidenes for the formation of internal C=C bonds and of cyclic alkyl amino carbene (CAAC)-containing ruthenium benzylidenes in the production of terminal olefins. A straightforward synthesis of bis(CAAC)Ru indenylidene complexes, which are highly effective in the formation of both te...
متن کاملConformations of N-heterocyclic carbene ligands in ruthenium complexes relevant to olefin metathesis.
The structure of ruthenium-based olefin metathesis catalyst 3 and model pi-complex 5 in solution and in the solid state are reported. The N-tolyl ligands, due to their lower symmetry than the traditional N-mesityl substituents, complicate this analysis, but ultimately provide explanation for the enhanced reactivity of 3 relative to standard catalyst 2. The tilt of the N-tolyl ring provides addi...
متن کاملInvestigation of Nature of The Active Species and Carbene Formation in Photocatalytic Metathesis Reaction
The nature of the active species which lead to the formation of the initiator carbene in photocatalytic metathesis reaction was investigated. The solid phase produced during irradiation was found to involve the active species while the soluble species showed no catalytic activity. The structure of the active solid was analyzed by ESCA, FT IR, NMR and chemical analysis methods and defined as a t...
متن کاملMixed N-heterocyclic carbene/phosphite ruthenium complexes: towards a new generation of olefin metathesis catalysts.
The synthesis, characterisation and catalytic behaviour of ruthenium indenylidene complexes bearing an N-heterocyclic carbene and triisopropylphosphite are described.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of The Society of Japanese Women Scientists
سال: 2007
ISSN: 1349-4449,2186-3776
DOI: 10.5939/sjws.07003