CAS: 123-01-3; Dodecylbenzene

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二苄醚置于叔丁基过氧化氢,Manganese(Iv) Oxide,Magnesium体系中,用 四氢呋喃,二氯甲烷,水 用作溶剂,-20.0~20.0 °C,101.33 Kpa 条件下,反应 22.0H,反应生成正十二烷基苯
参考文献:Mno2/tbhp:用于氧化烯丙基和苄基亚甲基官能团的多功能且用户友好的试剂组合
标题:Mno2/tbhp:用于氧化烯丙基和苄基亚甲基官能团的多功能且用户友好的试剂组合
摘要:在活化的 Mno2 存在下,Ch2Cl2 中的叔丁基过氧化氢 (Tbhp) 能够氧化不同类别化合物的烯丙基和苄基亚甲基.我描述了基于两个连续步骤的一锅氧化方案.在低温下进行的第一步中,Mno2 催化亚甲基的氧化.这之后是第二步,其中反应温度升高,使 Mno2 既可以催化未反应的 Tbhp 分解,又可以氧化可能形成的烯丙醇.所提出的氧化程序通常适用,尽管其效率,区域选择性和化学选择性在很大程度上取决于底物的结构.
Doi:10.1002/ejoc.201500829

专利信息

专利号:US-7652164-B2
优先权日:2005-09-13
标题:Process for the direct synthesis of trialkoxysilane
发明人：LEWIS KENRICK M; MEREIGH ABELLARD T; O'YOUNG CHI-LIN; CAMERON RUDOLPH A
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:The Direct Synthesis of trialkoxysilane is carried out by conducting the Direct Synthesis reaction of silicon and alcohol, optionally in solvent, in the presence of a catalytically effective amount of Direct Synthesis catalyst and an effective catalyst-promoting amount of Direct Synthesis catalyst promoter, said promoter being an organic or inorganic compound possessing at least one phosphorus-oxygen bond.

专利号:US-7429672-B2
优先权日:2006-06-09
标题 :Process for the direct synthesis of trialkoxysilane
发明人：LEWIS KENRICK M; CAMERON RUDOLPH A; RITSCHER LEGAL REPRESENTATIVE KAREN
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:This invention discloses a process to improve reaction stability in the Direct Synthesis of trialkoxysilanes. The process is particularly effective in the Direct Synthesis of triethoxysilane and its higher alkyl cognates providing improved triethoxysilane yields.

专利号:US-2003162992-A1
优先权日:2001-12-14
标 题 :Preparation of intermediates useful in the synthesis of antiviral nucleosides
发明人：WATANABE KYOICHI A; DU JINFA
摘要:The present invention is an efficient process for the manufacture of α-acyloxyacetaldehyde, a key intermediate in the synthesis of 1,3-oxathiolane and 1,3-dioxolane nucleosides.

专利号:US-RE39650-E
优先权日:1996-10-10
标 题:Surface-active additives in the direct synthesis of trialkoxysilanes
发明人：MENDICINO FRANK D; LEWIS KENRICK M; MAGRI SEBASTIANO; YU HUA; CHILDRESS THOMAS E
权利人:GEN ELECTRIC
摘要:Disclosed is a process in which surface-active additives are used in the slurry phase Direct Synthesis of trialkoxysilanes to shorten the period between the start of the reaction and the attainment of steady-state rates and selectivities, to improve product yields and to control or prevent foam formation. Compositions comprising silicone antifoam compounds and fluorosilicone polymers are the preferred surface-active additives of the instant process.

专利号:US-7495120-B2
优先权日:2001-01-31
标题 :Nanosized copper catalyst precursors for the direct synthesis of trialkoxysilanes
发明人：LEWIS KENRICK M; ENG REGINA NELSON; CROMER SABRINA R; MEREIGH ABELLARD T; O'YOUNG CHI-LIN
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:The present invention provides a process for using nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and mixtures thereof, as sources of catalytic copper in the Direct Synthesis of trialkoxysilanes of the formula HSi(OR) 3 wherein R is an alkyl group containing from 1 to 6 carbon atoms inclusive. The nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and their mixtures of this invention have average particle sizes that are in the range from about 0.1 to about 600 nanometers, preferably from about 0.1 to about 500 nanometers, and most preferably from about 0.1 to about 100 nanometers. Nanosized sources of catalytic copper afford high dispersion of catalytic sites on silicon and contribute to high reaction rates, high selectivity and high silicon conversion. The nanosized copper catalyst precursors of the invention permit the use of substantially reduced levels of copper compared to conventional practice.

专利号:US-5728858-A
优先权日:1996-10-10
标题:Activation of copper-silicon slurries for the direct synthesis of trialkoxysilanes
发明人：LEWIS KENRICK M; YU HUA
权利人:OSI SPECIALTIES INC
摘要:Disclosed is an improved process for the slurry phase Direct Synthesis of trialkoxysilanes which comprises the activation of copper catalyst and silicon with a reducing agent such as hydrogen gas, carbon monoxide or monosilane. Such activation affords high, stable reaction rates and selectivities and high silicon overall conversion especially in alkylated benzene solvents.