摘要:
A catalyst composition comprising a catalytic metal and a support, the support being prepared by depositing a metal alkoxide on a core support, then calcining the support.
摘要:
A catalyst composition comprising a catalytic metal and a support, the support being prepared by depositing a metal alkoxide on a core support, then calcining the support.
摘要:
A catalyst composition comprising a catalytic metal and a support, the support being prepared by depositing a metal alkoxide salt on a core support, then calcining the support.
摘要:
High molecular weight polyethylene glycol monoethers are cleaved to prepare lower oligomeric reaction products by contacting a mixture of the high molecular weight polyethylene glycol monoether and water with a hydrolytic cleavage catalyst such as alumina at elevated temperatures.
摘要:
Olefins are converted to alcohols by a one-step, hydroformylation process comprising contacting an olefin, such as 1-hexene, with a gaseous mixture of carbon monoxide and hydrogen in the presence of a catalyst prepared by loading a bimetallic cluster of the formula: Rh.sub.x Co.sub.y CO.sub.12 wherein both x and y are independently integers 1-3 with the proviso that .SIGMA. (x+y)=4, onto an amine resin, such as Dowex.RTM. MWA-1.
摘要:
Improved methods and articles providing conformal coatings for a variety of devices including electronic, semiconductor, and liquid crystal display devices. Peptide formulations which bind to nanoparticles and substrates, including substrates with trenches and vias, to provide conformal coverage as a seed layer. The seed layer can be further enhanced with use of metallic films deposited on the seed layer. Seed layers can be characterized by AFM measurements and improved seed layers provide for better enhancement layers including lower resistivity in the enhancement layer. Peptides can be identified by phage display.
摘要:
Acrolein acetals are selectively hydroformylated on the unsaturated carbon atom adjacent to the carbon bearing two ether groups in the presence of a supported rhodium-cobalt bimetallic cluster. The resulting internally hydroformylated product is useful as a precursor of methacrylic acid.
摘要:
Cyano acetals prepared by the reaction of an alcohol with a nitrile CO and H.sub.2 in the presence of a Co.sub.2 (CO).sub.8 catalyst are more selectively produced at elevated temperatures by the addition of an effective amount of a cyano alkyl amine or carboxy alkyl amine promoter.
摘要:
Dicyclopentadiene is selectively and substantially hydroformylated to its dimethanolic derivatives by a process comprising contacting dicyclopentadiene with a gaseous mixture of carbon monoxide and hydrogen at a temperature of at least about 100.degree. C. and a pressure of at least about 1,000 psig in the presence of a catalytic amount of a catalyst consisting essentially of a rhodium-cobalt bimetallic cluster, such as Rh.sub.2 Co.sub.2 CO.sub.12, supported on an amine resin, such as DOWEX.RTM. MWA-1.
摘要翻译:二环戊二烯通过包括使二环戊二烯与一氧化碳和氢气的气体混合物在至少约100℃的温度和至少约1,000psig的压力下在存在下接触的方法选择性且基本上加氢甲酰化为其二甲醇衍生物 催化量的催化剂基本上由负载在胺树脂上的铑 - 钴双金属簇如Rh 2 Co 2 CO 12组成,例如DOWEX TM MWA-1。
摘要:
Picolylamines are prepared by reacting (a) cyanopyridine with (b) hydrogen in the presence of a catalytic amount of (c) a palladium on .gamma.-alumina catalyst. The reaction is normally conducted under autogenous or superatmospheric pressure at a temperature of from 20.degree. C. to about 75.degree. C. in a lower alkanol (e.g., isopropanol) as the reaction medium.