Results 351 to 360 of about 171,419 (381)

Epoxide Resins

1989
The epoxide resins also known as epoxy resins and, occasionally, as ethoxyline resins, are characterized by the possession of more than one 1,2-epoxy group per molecule. This group may lie within the body of the molecule but is usually terminal. The three-membered epoxy ring is highly strained and is reactive to many substances, particularly with ...
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Manganese-corrole complexes as versatile catalysts for the ring-opening homo- and co-polymerization of epoxide.

Chemistry, 2014
Manganese-corrole complexes in combination with a co-catalyst [PPN]X ([PPN](+)=bis(triphenylphosphoranylidene)iminium) were found to be new versatile catalysts for the polymerization of epoxides, copolymerization of epoxides with CO2, and ...
C. Robert, Takahiro Ohkawara, K. Nozaki
semanticscholar   +1 more source

Aliphatic Epoxide Carboxylation

Annual Review of Biochemistry, 2003
▪ Abstract  Aliphatic epoxides (epoxyalkanes) are highly reactive electrophilic molecules that are formed from the monooxygenase-catalyzed epoxidation of aliphatic alkenes. The bacterial metabolism of short-chain epoxyalkanes occurs by a three-step pathway resulting in net carboxylation to β-ketoacids.
Scott A. Ensign, Jeffrey Allen
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Epoxides and Their Derivatives [PDF]

Nature, 1966
Epoxides and Their Derivatives By M. S. Malinovskii. Translated from the Russian. Pp. xvii + 493. (Jerusalem: Israel Program for Scientific Translations; London: Oldbourne Press, 1965.) 144s.
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Epoxides and Aziridines

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
S. S. Murphree, Albert Padwa
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Synergistic dual activation catalysis by palladium nanoparticles for epoxide ring opening with phenols.

Chemical Communications, 2013
Synergistic dual activation catalysis has been devised for epoxide phenolysis wherein palladium nanoparticles induce electrophilic activation via coordination with the epoxide oxygen followed by nucleophilic activation through anion-π interaction with ...
Kapileswar Seth, S. Roy, Bhavin V. Pipaliya, A. Chakraborti   +3 more
semanticscholar   +1 more source

An epoxidation byCorynebacterium simplex

Experientia, 1964
Wahrend unserer Untersuchungen uber die mikrobiologische Dehydrierung verschiedener 16β-Methylsteroide durch Bakterienkulturen vonCorynebacterium simplex, wurde eine neue Art von Umwandlung beobachtet. Von 16β-Methyl-Δ9(11)-pregnen-17α, 21-diol-3, 20-dion-21-acetat ausgehend, gelang es aus den Kulturfiltraten 16β-Methyl-Δ1, 4-pregnadien-9α, 11α-epoxy ...
P. Sensi, C. Coronelli, D. Kluepfel
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Sharpless asymmetric epoxidation

2002
Enantioselective epoxidation of allylic alcohols using t-butyl peroxide, titanium tetra-iso-propoxide, and optically pure diethyl tartrate.
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Copolymerization of carbon dioxide and epoxide

, 1969
Alternating copolymerization of CO2 and epoxide to give aliphatic polycarbonate with high molecular weight proceeds under mild conditions by organometallic catalyst systems. The reaction product of diethylzinc with a polyhydric compound, such as water or
S. Inoue, H. Koinuma, T. Tsuruta
semanticscholar   +1 more source

Fluoroalkylethylenes and their epoxides

Journal of Fluorine Chemistry, 1991
Abstract Fluoroalkylethylenes of types 1 and 2 are unresponsive to the usual reagents for epoxidation, but recent methods have made the epoxides and related halohydrins readily available. Use of the reagent X2/nSO3, which readily attacks the double bond of both 1 and 2, will be described in detail and compared to two other effective reagents ...
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