Results 341 to 350 of about 171,419 (381)

Sulfur-functionalized graphene oxide by epoxide ring-opening.

Angewandte Chemie, 2014
The treatment of graphene oxide (GO) with potassium thioacetate followed by an aqueous work-up yields a new material via the ring-opening of the epoxide groups.
H. R. Thomas, A. J. Marsden, M. Walker, N. Wilson, J. Rourke   +4 more
semanticscholar   +1 more source

Reaction of dimesitylsilylene with epoxides. Silanone–epoxide adducts

J. Chem. Soc., Chem. Commun., 1981
Dimesitylsilylene, generated by photolysis of 2,2-dimesitylhexamethyltrisilane (1), reacts with epoxides to give dimesitylsilanone–epoxide adducts.
Wataru Ando, Masayuki Ikeno, Yoshitaka Hamada   +2 more
openaire   +3 more sources

Asymmetric catalysis of epoxide ring-opening reactions.

Accounts of Chemical Research, 2000
The discovery of the metal salen-catalyzed asymmetric ring-opening (ARO) of epoxides is chronicled. A screening approach was adopted for the identification of catalysts for the addition of TMSN(3) to meso-epoxides, and the chiral (salen)CrN(3) complex ...
Eric N. Jacobsen
semanticscholar   +1 more source

Vitamin K epoxide reductase activity in the metabolism of epoxides

Biochemical Pharmacology, 1985
The importance of vitamin K epoxide reductase for the metabolism of a range of structurally diverse epoxides has been investigated. Vitamin K1 epoxide is reduced by rat liver microsomes at a rate of 0.47 nmoles/g liver/min. The rate of menadione oxide reduction is not significantly higher than the non-enzymatic reduction rate.
W. Wörner, K. Dose, Franz Oesch, T. Guenthner, I. Liptay-Reuter   +4 more
openaire   +3 more sources

Flavanoid epoxides V. Stereochemistry of flavindogenide epoxides

Tetrahedron Letters, 1968
Abstract The four possible isomeric flavindogenide (3-arylideneflavanone) epoxides (type III, IV, V and VI) have been synthesized and their configurations assigned on the basis of chemical and spectroscopic data. Suggested mechanisms for the epoxidation reactions are discussed.
K. G. Marathe, W. I. O'Sullivan, D. D. Keane, J.P. Doherty, R. M. Simons, P. C. Teague, E.M. Philbin   +6 more
openaire   +2 more sources

Asymmetric Epoxidation of Allylic Alcohols: The Sharpless Epoxidation [PDF]

Synthesis, 1986
Cette epoxydation se fait avec l'hydroperoxyde de t-butyle en presence de propanolate-2 de titane IV avec le tartrate de dialkyle chiral; exemples de synthese de composes naturels enantiomeriquement purs par l'intermediaire d'epoxydes obtenus par cette reaction ...
openaire   +1 more source

Halogenated epoxides and related compounds as inhibitors of epoxide hydrase

Archives of Biochemistry and Biophysics, 1980
Abstract A variety of chlorinated and fluorinated epoxides and related compounds were synthesized and evaluated as inhibitors of epoxide hydrase. The compounds were tested using chicken liver microsomes and a radiometric assay based on [ 3 H]styrene oxide, and using partially purified chicken liver microsomal epoxide hydrase and a continuous ...
John S.A. Walsh, Robert P. Hanzlik
openaire   +3 more sources

Inhibition of liver microsomal epoxide hydrase by cyproheptadine epoxide

Experientia, 1977
Cyproheptadine epoxide is a competitive inhibitor or rat liver microsomal epoxide hydrase with an apparent K1-value of 0.75 mM. Cyclobenzaprine and its epoxide stimulate in vitro the activity of this enzyme, whereas cyproheptadine, carbamazepine and carbamazepine epoxide have no effect.
Giorgio Belvedere, J. Pachecka, Lavinia Cantoni, Mario Salmona, Emilio Mussini, Silvio Garattini   +5 more
openaire   +3 more sources

A concise review of computational studies of the carbon dioxide–epoxide copolymerization reactions

, 2014
The production of polycarbonates from carbon dioxide and epoxides is an important route by which CO2, a waste product with harmful environmental effects, is converted into useful products.
D. Darensbourg, Andrew D. Yeung
semanticscholar   +1 more source

Dual-Reactive Hyperbranched Polymer Synthesis through Proton Transfer Polymerization of Thiol and Epoxide Groups

, 2014
A new synthesis of hyperbranched polymers through proton transfer polymerization of thiol and epoxide groups is presented. For this, an AB2 monomer bearing two epoxides and a thiol groups is synthesized.
Ikhlas Gadwal, S. Binder, M. Stuparu, Anzar Khan   +3 more
semanticscholar   +1 more source