CAS: 32488-50-9; Tetrachloromethane

上下游产品

CAS号14742-26-8 甲醇-13C | CAS号75-44-5 光气 | CAS号69884-58-8 trichloromethyl... | CAS号7782-50-5 氯气

专利信息

专利号:US-9248430-B2
优先权日:2009-11-17
标 题 :Method for synthesis of 1-decene oligomer
发明人：HUANG FULING; MI PUKE; WANG SIHAN; QIAN JINHUA; CHEN QIAN; XU SHENG; LI JIANZHONG; WANG GANG; ZHANG BAOJUN; LIU MIN; WANG GUIZHI; HAN XUEMEI; QU JIABO; LU PANFENG; SUN SHUKUN; WANG XIUHUI; GAO YUXIN; ZHANG DESHUN; JIANG LING; YU BUWEI; WANG LIBO; WANG YALI; FAN LINGTING; WEI PENG; LIU WEI; GUO GUIYUE
权利人:HUANG FULING; MI PUKE; WANG SIHAN; QIAN JINHUA; CHEN QIAN; XU SHENG; LI JIANZHONG; WANG GANG; ZHANG BAOJUN; LIU MIN; WANG GUIZHI; HAN XUEMEI; QU JIABO; LU PANFENG; SUN SHUKUN; WANG XIUHUI; GAO YUXIN; ZHANG DESHUN; JIANG LING; YU BUWEI; WANG LIBO; WANG YALI; FAN LINGTING; WEI PENG; LIU WEI; GUO GUIYUE; PETROCHINA CO LTD; UNIV EAST CHINA SCIENCE & TECH
摘要:A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120° C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 M of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100° C. and calcining at 400-800° C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40° C. of 6.0-25 mm 2 /s and a viscosity index of 160-262.

专利号:US-2024286990-A1
优先权日:2021-06-18
标题:Vinylated keto esters with applicability in signal enhanced magnetic resonance imaging and synthesis thereof
发明人：GLÖGGLER STEFAN; KORCHAK SERGEY; JAGTAP ANIL P; SAUL PHILIP; MOLL DENIS
权利人:MAX PLANCK GESELLSCHAFT
摘要:The present invention relates to a vinyl keto ester and intermediates of its synthesis, wherein the vinyl moiety of the vinyl hydroxy ester and of the intermediates is partly or fully deuterated. Furthermore, the present invention relates to two alternative methods of preparing said vinyl keto ester. The first method is a multi-step approach comprising the steps of providing a carboxylic acid that comprises a geminal diol moiety protected by a photolabile protecting group, vinylating said carboxylic acid using vinyl acetate, and cleaving the protecting group by applying UV light. The second method is a one-step approach of reacting a carboxylic acid that comprises an additional carbonyl moiety with acetylene in the presence of a metal catalyst. In both methods, the compounds used may be fully or partly deuterated.

专利号:US-2012232321-A1
优先权日:2009-11-17
标 题:Method for synthesis of 1-decene oligomer

专利号:CN-110229284-B
优先权日:2019-07-15
标 题 :Synthesis method of polyaryletherketone grafted polyvinylpyrrolidone

专利号:CN-115433220-A
优先权日:2022-09-26
标题 :Synthesis method of lithium bis (oxalato) borate