CAS: 1338-24-5; Naphthenic Acid

专利信息

专利号:US-3888880-A
优先权日:1973-10-30
标题:Synthesis of diether-aldehydes and diether-alcohols
发明人：SNAPP JR THOMAS C; BLOOD ALDEN E
权利人:EASTMAN KODAK CO
摘要:The present invention describes a process for the production of p-dioxanecarboxyaldehyde and p-dioxanemethanol via the hydroformylation and hydrogenation of p-dioxene. The new compound, p-dioxanecarboxyaldehyde, is an intermediate useful in the synthesis of plasticizers and perfumes. p-Dioxanemethanol is a known chemical useful as a plasticizer, surface active agent and in adhesives and urethanes.

专利号:WO-2009049476-A1
优先权日:2007-09-20
标题 :Process for the manufacture of (+)-biotin
发明人：CHEN FEN-ER; DAI HUI-FANG; HUANG JIAN; XIONG FEI; JING SHU-PING
权利人:DSM IP ASSETS BV; UNIV FUDAN; CHEN FEN-ER; DAI HUI-FANG; HUANG JIAN; XIONG FEI; JING SHU-PING
摘要:Disclosed are processes for preparing synthetic biotin intermediates and a process for preparing biotin using said intermediates. In particular, disclosed is a process for the stereoselective total synthesis of the natural product (+)-biotin of formula (I).

专利号:US-8188304-B2
优先权日:2006-03-31
标 题:Process for the purification of lanthanide carboxylates
发明人：BIAGINI PAOLO; SALVALAGGIO MARIO; CAMBISI FRANCO; BONOLDI LUCIA; GILA LILIANA
权利人:BIAGINI PAOLO; SALVALAGGIO MARIO; CAMBISI FRANCO; BONOLDI LUCIA; GILA LILIANA; POLIMERI EUROPA SPA
摘要:A process is described for the purification of lanthanide carboxylates which comprises a step in which the hydrocarbon solution deriving from the synthesis of lanthanide carboxylate, containing said carboxylate and impurities of the corresponding carboxylic acid and/or water, is treated with an aqueous solution of a base in order to obtain a pH of the aqueous phase ranging from 9.0 to 12.2 and/or a step in which the hydrocarbon solution containing lanthanide carboxylate is treated with a solid selected from Na 2 SO 4 , MgSO 4 , Mg(ClO 4 ) 2 , molecular sieves 3 â„«, molecular sieves 4 â„«, molecular sieves 5 â„« and molecular sieves 13 X. Analytical methods are also described, which allow the purity of the lanthanide carboxylates to be non-destructively measured.

专利号:US-5840942-A
优先权日:1993-12-02
标题 :Catalyzed synthesis of aryl-substituted fatty acids and fatty esters and compositions related thereto
发明人：OUDE ALINK BERNARDUS A
权利人:BAKER HUGHES INC
摘要:A novel method for preparing an aryl-substituted fatty acid or fatty ester is disclosed. According to the method, an olefinic composition selected from among mono-unsaturated fatty acids, mono-unsaturated fatty esters and mixtures thereof is introduced to a reaction zone comprising a liquid aromatic hydrocarbon and a catalytic amount of a clay catalyst to produce a reaction that is allowed to proceed for a time and at a temperature sufficient to produce a reaction product comprising a desired yield of aryl-substituted fatty acid or fatty ester. Preferably, the introduction of the olefinic composition is conducted slowly, such as over a period of one to four, more preferably, two to four, hours. Related methods and compositions, including xylylstearic acid, are also disclosed.

专利号:US-5440059-A
优先权日:1993-12-02
标 题 :Clay-catalyzed synthesis of aryl-substituted fatty acids and fatty esters and compositions related thereto
发明人：ALINK BERNARDUS A O
权利人:PETROLITE CORP
摘要:A novel method for preparing an aryl-substituted fatty acid or fatty ester is disclosed. According to the method, an olefinic composition selected from among mono-unsaturated fatty acids, mono-unsaturated fatty esters and mixtures thereof is introduced to a reaction zone comprising a liquid aromatic hydrocarbon and a catalytic amount of a clay catalyst to produce a reaction that is allowed to proceed for a time and at a temperature sufficient to produce a reaction product comprising a desired yield of aryl-substituted fatty acid or fatty ester. Preferably, the introduction of the olefinic composition is conducted slowly, such as over a period of one to four, more preferably, two to four, hours. Related methods and compositions, including xylylstearic acid, are also disclosed.

专利号:US-11753587-B2
优先权日:2018-05-30
标 题:Method for synthesis of blue-emitting ZnSe1-xTEx alloy nanocrystals
发明人：IPPEN CHRISTIAN; TRUSKIER JONATHAN; MANDERS JESSE
权利人:NANOSYS INC
摘要:The invention relates to highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe 1-x Te x core and ZnS and/or ZnSe shell layers. The invention also relates to methods of producing such nanostructures.