CAS: 105-58-8; Diethyl Carbonate

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CAS号64-17-5 乙醇 | CAS号124-38-9 二氧化碳 | CAS号5536-61-8 甲基丙烯酸钠 | CAS号541-41-3 氯甲酸乙酯 | CAS号57-13-6 尿素 | CAS号271798-12-0 (+/-)-4-methyl-... | CAS号122-60-1 环氧丙基苯基醚 | CAS号75-56-9 环氧丙烷 | CAS号71-36-3 正丁醇 | CAS号51-79-6 氨基甲酸乙酯 | CAS号101492-44-8 ethyl 2-(4-chlo... | CAS号1060814-91-6 2-(4-溴吡啶-2-基)乙酸乙酯 | CAS号3699-66-9 三乙基二磷酸酯 | CAS号57-44-3 巴比妥 | CAS号5552-83-0 6-甲基吡啶-2-乙酸乙酯 | CAS号4427-96-7 乙烯基碳酸乙烯酯 | CAS号32864-38-3 丙二酸叔丁基乙酯 | CAS号49744-93-6 3-氧代-3-对氰基苯基丙酸乙酯 | CAS号4017-56-5 2-氧-1-环辛烷羧酸乙酯 | CAS号371-62-0 2-氟乙醇

焦碳酸二乙酯 反应生成碳酸二乙酯
参考文献:Boehm; Mehta,Chemische Berichte,1938,Vol. 71,P. 1797,1802
标题:Boehm; Mehta,Chemische Berichte,1938,Vol. 71,P. 1797,1802

专利信息

专利号:US-11236029-B2
优先权日:2019-05-17
标题 :Synthesis of a triangulene ring system and derivatives thereof
发明人：JOHNSON RICHARD PETER; HOLT CARTER J
权利人:THE UNIV OF NEW HAMPSHIRE; UNIV NEW HAMPSHIRE
摘要:A three step synthesis of the 8,12-dihydro-4H-dibenzo[cd,mn]pyren-3a 2 -ylium cation (triangulenium cation) is effected by cascade cyclization of a tetra-benzyl alcohol precursor in triflic acid solution. This cation is easily observed by NMR and optical spectroscopy. Quenching of the cation into basic solutions or by hydride transfer from triethylsilane provides access to stable dihydro and tetrahydro[3]triangulenes. This route makes several [3]triangulene precursors more readily available for development of new applications in the field of molecular electronics.

专利号:US-9045788-B2
优先权日:2012-07-17
标题:Process for the enzymatic synthesis of (7S)-1-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl) N-methyl methanamine, and application in the synthesis of ivabradine and salts thereof
发明人：PEDRAGOSA-MOREAU SANDRINE; LEFOULON FRANÇOIS; MORIS VARAS FRANCISCO; GONZALEZ SABIN JAVIER
权利人:SERVIER LAB
摘要:Process for the enzymatic synthesis of the compound of formula (I), (7S)-1-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)N-methyl methanamine: n nand application in the synthesis of ivabradine and addition salts thereof with a pharmaceutically acceptable acid.

专利号:US-2006287520-A1
优先权日:2005-05-16
标 题 :Synthesis of salinosporamide A and analogues thereof
发明人：DANISHEFSKY SAMUEL J; ENDO ATSUSHI
权利人:DANISHEFSKY SAMUEL J; ENDO ATSUSHI
摘要:A novel synthesis of salinosporamide A is provided. Salinospoamide A as well as structurally related natural products, omuralide and lactacystin, have been shown to be proteasome inhibitors. Therefore, these compounds as well as analogues of these natural products may be useful in the treatment of proliferative diseases such as cancer, autoimmune diseases, diabetic retinopathy, etc. The invention provides for the synthesis of salinosporamide A as well as analogs thereof using a convenient point for derivatization of the bicyclic core. Pharmaceutical compositions and method of using the inventive compounds are also provided.

专利号:US-2024182439-A1
优先权日:2022-11-23
标题 :Method for catalytic synthesis of crude ethylene sulfate
发明人：REN FAN; WANG LIANG; SONG WENCHAO; Dai Rongming; LIANG LICHUN; Cui Xianmiao
权利人:Wuhan Oxiran Special Chemicals Company
摘要:In method for catalytic synthesis of crude ethylene sulfate, a sulfur trioxide solution is prepared by dissolving sulfur trioxide with a solution A, an ethylene oxide solution is prepared by mixing a solution B with ethylene oxide, a catalyst is added to the sulfur trioxide solution and mixing them to obtain a mixed solution C, the ethylene oxide solution and the mixed solution C are pre-cooled, and then introduced into a set of microchannel reactors for a real-time reaction to obtain a mixed solution containing crude ethylene sulfate, and then a post-treatment process is carried out to obtain crude ethylene sulfate. With the process, the reaction selectivity is good, and a microchannel reaction can accurately control the reaction energy level due to its rapid mixing and timely heat transfer, which greatly reduces the safety risk and effectively avoids the occurrence of side reactions.

专利号:US-2023287032-A1
优先权日:2020-08-14
标 题:Synthesis of fluorinated nucleotides
发明人：CHUNG CHEOL KEUN; LIU ZHIJIAN; MALIGRES PETER E; MAO EDNA; OBLIGACION JENNIFER V; PHILLIPS ERIC M; PIRNOT MICHAEL; POIRIER MARC; SONG ZHIGUO JAKE; WANG TAO
权利人:CHUNG CHEOL KEUN; LIU ZHIJIAN; MALIGRES PETER E; MAO EDNA; OBLIGACION JENNIFER V; PHILLIPS ERIC M; PIRNOT MICHAEL; POIRIER MARC; SONG ZHIGUO JAKE; WANG TAO; MERCK SHARP & DOHME LLC
摘要:The present invention relates to efficient processes useful in the preparation of fluorinated nucleosides, such as (O—{[(2R,3R,4S,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-3-hydroxyoxolan-2-yl]methyl}O,O-dihydrogen phosphorothioate, also known as 2′-(S)-fluoro-thio-adenosine monophosphate or 2′-F-thio-AMP. Such fluorinated nucleosides may be useful as a biologically active compound and or as an intermediate for the synthesis of more complex biologically active compounds. The present invention also encompasses intermediates useful in the disclosed synthetic processes and the methods of their preparation.

专利号:US-5849955-A
优先权日:1996-12-05
标题 :Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone
发明人：NOTARI MARCELLO; MIZIA FRANCO; RIVETTI FRANCO
权利人:ENICHEM SPA
摘要:A process is described for the synthesis of 2-hydroxy-4-alkyloxy benzophenone by the selective alkylation of 2,4-dihydroxy benzophenone with a dialkyl carbonate, in liquid phase, in the presence of suitable catalysts, at a temperature ranging between 120 DEG and 220 DEG C. and at a total pressure ranging from 2 to 60 ate.