CAS: 617-50-5; Propan-2-Yl 2-Methylpropanoate

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CAS号79-30-1 异丁酰氯 | CAS号67-63-0 异丙醇 | CAS号79-31-2 异丁酸 | CAS号100351-38-0 | CAS号187737-37-7 propene | CAS号201230-82-2 carbon monoxide | CAS号74-98-6 丙烷 | CAS号64-19-7 冰醋酸 | CAS号3437-84-1 二异丁酰基过氧化物 | CAS号108-88-3 甲苯

异丙醇,异丁酸置于zirconium(Iv) Oxide体系中,化学反应生成 1-甲基乙基-2-甲基丙酸酯
参考文献:羧酸与醇在水合氧化锆上的酯化反应
标题:羧酸与醇在水合氧化锆上的酯化反应
摘要:羧酸与醇的酯化与水合氧化锆有效地进行,以在气相,液相和高压釜中得到相应的酯.羧酸和醇的空间位阻通过降低反应性来影响酯化.随着反应温度的升高,羧酸的转化率增加.尽管反应温度高,但使用水合氧化锆可以防止醇类脱水.反应速率与催化剂和醇的浓度有关,与羧酸的浓度成反比.酯交换也有效地进行.
DOI:10.1246/bcsj.62.2353

专利信息

专利号:US-2005192445-A1
优先权日:2004-03-01
标题:Semi-synthesis of taxane intermediates and aziridine analogues and their conversion to paclitaxel and docetaxel
发明人：NAIDU RAGINA
权利人:PHYTOGEN LIFE SCIENCES INC
摘要:A process is provided for the semi-synthesis of taxane intermediates and aziridine analogues of cephalomannne and baccatin III intermediates, and the conversion of such intermediates and analogues to paclitaxel and docetaxel.

专利号:US-3887490-A
优先权日:1970-08-27
标 题 :Process for regenerating noble metal catalyst for the synthesis of hydrogen peroxide according to the anthraquinone process
发明人：SCHREYER GERD; THEISSEN FERDINAND; WEIBERG OTTO; WEIGERT WOLFGANG
权利人:DEGUSSA
摘要:In situ regeneration of noble metal catalysts for the synthesis of hydrogen peroxide by the anthraquinone process is provided by employing as the working solution coming from the extraction or desorption step and being introduced into the hydrogenation step a solution which contains at least 250 mg/liter of hydrogen peroxide, to thereby completely regenerate the noble metal catalyst by full capacity of the hydrogenation step.

专利号:US-4616097-A
优先权日:1984-10-22
标 题:Process for low pressure synthesis of ethylene glycol from synthesis gas plus formaldehyde
发明人：KNIFTON JOHN F
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glycol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus formaldehyde in the presence of a homogenous liquid catalyst containing an effective amount of cobalt-containing compound and a silicon-containing promoter at a temperature of at least 50 DEG C. and a pressure of at least 500 psi.

专利号:US-4476326-A
优先权日:1983-02-03
标题 :Process for the synthesis of ethanol and acetaldehyde using cobalt compounds with novel promoters
发明人：LIN JIANG-JEN; KNIFTON JOHN F
权利人:TEXACO INC
摘要:Ethanol and/or acetaldehyde are prepared in good yield by contacting methanol, hydrogen and carbon monoxide with a catalyst system comprising a cobalt-containing compound and a promoter in the presence of an inert oxygenated solvent at a temperature of from about 50 DEG C. to about 350 DEG C. and a pressure of at least 500 psig or greater. The combination of cobalt-containing compound and promoter may be (a) a cobalt-containing compound with an organo-sulphur compound, (b) an iodide-containing cobalt compound with a nitrogen-containing compound as promoter, and (c) a cobalt-containing compound with 1,1'-bis(diphenylphosphino)ferrocene.

专利号:US-4533756-A
优先权日:1983-11-07
标 题 :Process for synthesis of acrylic acid precursors via hydroformylation of vinyl ether
发明人：LIN JIANG-JEN; BRADER JR WALTER H
权利人:TEXACO INC
摘要:A process is disclosed for the preparation of acrylic acid precursors by a hydroformylation process which comprises reacting a vinyl ether with carbon monoxide and hydrogen in the presence of a catalyst comprising a rhodium carbonyl compound and a phosphine ligand at a mild temperature and pressure until there is substantial formation of the intermediate 2- and 3-ethoxypropanals, followed by oxidation of said aldehydes and pyrolysis to said acrylic acid.

专利号:US-7517828-B2
优先权日:2003-04-25
标 题 :Chiral broensted acid catalyst for asymmetric synthesis and method of asymmetric synthesis with the catalyst
发明人：AKIYAMA TAKAHIKO
权利人:TOAGOSEI CO LTD
摘要:A compound usable as an asymmetric synthesis catalyst which can be easily synthesized without using any metal such as a lanthanoid group element; a method of asymmetric synthesis with the compound; and a chiral compound obtained by the asymmetric synthesis method. A Broensted acid is used as a catalyst in asymmetric synthesis, the chiral Broensted acid being represented by formula (1) below or formula (3) below. The asymmetric synthesis method employs the catalyst. Asymmetric synthesis with the catalyst gives a chiral compound.