CAS: 110-19-0; Isobutyl Acetate

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CAS号820-71-3 甲基丙烯醇乙酸酯 | CAS号201230-82-2 carbon monoxide | CAS号36982-54-4 acetic acid,cyc... | CAS号78-83-1 异丁醇 | CAS号108-24-7 乙酸酐 | CAS号75-36-5 乙酰氯 | CAS号109-53-5 异丁基乙烯基醚 | CAS号3618-96-0 N-乙酰基-L-苯丙氨酸甲酯 | CAS号108-10-1 甲基异丁基甲酮 | CAS号187737-37-7 propene | CAS号562-90-3 正硅酸四乙酯 | CAS号140-11-4 乙酸苄酯 | CAS号78-83-1 异丁醇 | CAS号64-19-7 冰醋酸 | CAS号124-38-9 二氧化碳 | CAS号67-64-1 丙酮 | CAS号115-11-7 2-甲基丙烯 | CAS号2216-45-7 4-甲基苄醇乙酯 | CAS号83-88-5 核黄素 | CAS号7779-75-1 乙酰乙酸异丁酯

4-甲基-2-戊酮置于双氧水体系中,用 水,1,2-二氯乙烷 用作溶剂,化学反应 6.0H,反应生成乙酸异丁酯
参考文献:粘土负载锡的制备 催化剂 及其在baeyer-villiger氧化中的应用
标题:粘土负载锡的制备 催化剂 及其在baeyer-villiger氧化中的应用
摘要:粘土插层锡 催化剂 是由常规方法准备的 阳离子交换法并用于各种baeyer-Villiger氧化 酮类 和 过氧化氢作为氧化剂.通过固态7 Li监测单体sn物质向粘土夹层中的插入核磁共振.固态119 Sn核磁共振 和锡k边缘 Xafs分析表明,在黏土夹层中形成了孤立的sn物种,例如[sn Iv(oh)x(h 2 O)5-X ] (4-X)+(x = 0-3).我们的粘土插层锡催化剂 在拜耳-维利格表现出色 氧化作用 并且可以重复使用,而不会显着降低活性或选择性.
Doi:10.1039/c2Gc16437J

专利信息

专利号:US-11639349-B2
优先权日:2020-05-28
标题:Stereoselective synthesis of intermediate for preparation of heterocyclic compound
发明人：CHEN WEN-CHANG; HSU HAN-PEI; CHOU SHAN-YEN; CHUANG SHIH-CHIEH; YEN CHI-FENG
权利人:TAI GEN BIOTECHNOLOGY CO LTD; TAIGEN BIOPHARMACEUTICALS CO BEIJING LTD; TAIGEN BIOTECHNOLOGY CO LTD
摘要:Provided is a stereoselective synthesis of an intermediate for the preparation of the heterocyclic derivative as a Cap-dependent endonuclease inhibitor. The synthesis process has the advantages of simple operation, higher yield and relatively controllable steroselectivity, such that it is suitable for large-scale production.

专利号:US-9012625-B2
优先权日:2009-04-07
标 题 :Method for the synthesis of a trisaccharide
发明人：DÉKANY GYULA; à GOSTON Kà ROLY; BAJZA ISTVAN; BOUTET JULIEN; BØJSTRUP MARIE; FANEFJORD METTE; PÉREZ FIGUEROA IGNACIO; HEDEROS MARKUS; HORVATH FERENC; KOVà CS-PÉNZES PIROSKA; KRÖGER LARS; OLSSON JOHAN; RÖHRIG CHRISTOPH; SCHROVEN ANDREAS; VRASIDAS IOANNIS
权利人:DÉKANY GYULA; à GOSTON Kà ROLY; BAJZA ISTVAN; BOUTET JULIEN; BØJSTRUP MARIE; FANEFJORD METTE; PÉREZ FIGUEROA IGNACIO; HEDEROS MARKUS; HORVATH FERENC; KOVà CS-PÉNZES PIROSKA; KRÖGER LARS; OLSSON JOHAN; RÖHRIG CHRISTOPH; SCHROVEN ANDREAS; VRASIDAS IOANNIS; GLYCOM AS
摘要:The present invention relates to an improved synthesis of a trisaccharide of the formula (1), novel intermediates used in the synthesis and the preparation of the intermediates.

专利号:US-4250330-A
优先权日:1977-04-13
标题:Process for the recovery of the solvent and of the by-produced methylacetate in the synthesis of terephthalic acid
发明人：COSTANTINI GIUSEPPE; PAOLI PIETRO; SERAFINI MAURO
权利人:MONTEDISON SPA
摘要:The invention refers to an improved process for the recovery of the solvent and of the by-produced methylacetate in the synthesis of terephthalic acid, said synthesis being usually consisting of an oxidation of paraxylene with air, in the presence of a catalyst system composed by cobalt, manganese and bromine, in a solvent consisting of acetic acid, according to the equation (1): n n C.sub.6 H.sub.4 (CH.sub.3).sub.2 +3 O.sub.2 →C.sub.6 H.sub.4 n n (COOH) 2 =2 H 2 O (1) n More particularly, the improved process of this invention comprises the oxidation of para-xylene in acetic acid solution and in the presence of a catalytic system based on manganese, bromine and cobalt, whereby water is formed and methylacetate is by-produced during the oxidation, whereby solid terephthalic acid is separated from the mother liquor and whereby one withdraws from the oxidation zone a liquid which is obtained by condensing the vapors released during the oxidation and which are mainly consisting of acetic acid and water, the improvement consisting of the fact that: n (a) the liquid obtained by condensing the released vapors and said mother liquor are fed both to an azeotropic distillation system in which the azeotropic agent is isobutyl-acetate; n (b) the light ends of the azeotropic distillation, richer in water, are condensed and demixed into two phases, wherein the aqueous phase, which is lower and contains isobutyl-acetate and methyl-acetate, is conveyed to a stripping, whereby isobutyl-acetate and methyl-acetate are recovered, and wherein the organic phase is recycled to the azeotropic distillation.

专利号:US-10011580-B2
优先权日:2016-04-21
标题:Diastereoselective synthesis of (±)-epianastrephin, (±)-anastrephin and analogs thereof
发明人：WALSE SPENCER S; KUZMICH DANIEL
权利人:US AGRICULTURE
摘要:A process for the synthesis of trans-fused γ-lactones having Formula (IV) from substituted cyclic ketones having Formula (I). A diastereoselective synthesis of (±)-epianastrephin (1) (wherein: R 1 is ethenyl, R 2 and R 3 is methyl, and n is 1), (±)-anastrephin (2) (wherein: R 2 is ethenyl, R 1 and R 3 is methyl and n is 1), and analogs thereof (wherein: R 1 is H, C 1-5 alkyl, C 2-6 alkenyl or C 2-6 alkynyl, R 2 is H, C 1-5 alkyl, C 2-6 alkenyl or C 2-6 alkynyl, R 1 and R 2 together with the carbon atom they are attached form a C 3-6 cycloalkyl ring, R 3 is C 1-5 alkyl and n is 0-2):

专利号:US-6177564-B1
优先权日:1998-09-11
标题:Process for the synthesis of N-benzyl-3-(4-fluorophenyl)-1-4-oxazin-2-one
发明人：NELSON TODD D; BHUPATHY MAHADEVAN
权利人:MERCK & CO INC
摘要:The present invention is concerned with a novel process for the preparation of N-benzyl-3-(4-fluorophenyl)-1,4-oxazin-2-one of the formula:This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity, in particular, as substance P (neurokinin-1) receptor antagonists.

专利号:US-2023002312-A1
优先权日:2019-11-20
标题:A continuous flow process for the synthesis of hydroxamic acid
发明人：PIMPALE MILIND JAGANNATH; KINI PRASHANT VASANT
权利人:UPL LTD
摘要:The present invention relates to a process for the synthesis of hydroxamic acids by continuous flow process wherein said process comprising reacting alkyl ester with hydroxyl amine salt in presence of base in a microreactor system and continuously producing hydroxamic acid.