摘要:
The present invention relates to a process for the reaction of a compound with hydrogen wherein the reaction is conducted using a hydrogen-containing gas comprising up to about 10 vol.% hydrogen and at least about 90 vol.% of an inert gas and wherein the compound to be reacted with hydrogen is provided in a liquid phase. The process of the present invention is particularly suitable for hydrogenation and hydrogenolysis reactions.
摘要:
The invention provides N,N'-disubstituted monothiourea or bisthiourea-Pd(0) complexes that are useful as catalysts for palladium-catalyzed Heck reaction of aryl iodides and bromides with olefins, and as catalysts for palladium catalyzed Suzuki reactions of organoboric compounds and aryl halides (Formula A).
摘要:
A process for selectively producing a monoolefin hydrocarbon and/or a diolefin hydrocarbon represented by general formula (3) by the dehydrogenation or oxidative dehydrogenation of a mixture of a hydrocarbon selected from among those represented by general formula (1) with another hydrocarbon selected from among those represented by general formula (2) followed by distillation: in formula (1), R represents -CH2- or (A); in formula (2), R represents -CH2- or (A); in formula (3), R represents -CH2-, (A) or (B); and R1 represents vinyl or ethyl.
摘要:
The invention relates to a method for producing a catalyst containing iron oxide, potassium oxide, a magnesium compound and a cerium compound and is characterised in that said catalyst has one or more Fe/K phases K2O.Fe2O3 1:n, with a natural number n of a to 11. The invention also relates to methods for dehydrogenating ethyl benzene to produce styrene.
摘要:
A mono-olefin hydrocarbon and/or a di-olefin hydrocarbon represented by the following general formula (3) is selectively produced by dehydrogenating or oxidative-dehydrogenating a mixture of any one of hydrocarbons among the hydrocarbons represented by the following general formula (1) and any one of hydrocarbons among the hydrocarbons represented by the following general formula (2), followed by distillation;
摘要:
A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many common organic solvents and possesses other desirable characteristics, e.g. high electron density, ability to burn cleanly, and electrical conductive properties. Many uses for this fourth allotrope are described herein.
摘要:
Hexenediynes, suitable for use in liquid crystal systems, have the formula:
wherein R¹ and R² are the same or are different and each is an alkyl or alkoxy group; ring A and ring B are the same or are different and each is a 1,4-cyclohexylene or 1,4-phenylene group; and X is a hydrogen or fluorine atom.