CAS: 7605-30-3; Ethyl 2-(Phenylsulfonyl)Acetate

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CAS号7605-25-6 苯硫基乙酸乙酯 | CAS号873-55-2 苯亚磺酸钠 | CAS号105-39-5 氯乙酸乙酯 | CAS号105-36-2 溴乙酸乙酯 | CAS号98-09-9 苯磺酰氯 | CAS号54882-04-1 苯亚磺酰乙酸乙酯 | CAS号515-42-4 苯磺酸钠 | CAS号20611-21-6 2-(苯基磺酰基)乙醇 | CAS号64-17-5 乙醇 | CAS号3959-23-7 (苯磺酰)乙酸 | CAS号35008-50-5 (苯磺酰)乙酰胺 | CAS号59662-65-6 甲巯基甲基对甲苯砜 | CAS号134937-34-1 1-(苯基磺酰基)环戊烷羧酸 | CAS号69957-40-0 ethyl 2-(benzen... | CAS号74254-66-3 1-(benzenesulfo... | CAS号86537-54-4 ethyl 1-(benzen... | CAS号922172-16-5 ethyl 2-(benzen... | CAS号922172-17-6 2-(benzenesulfo... | CAS号95636-04-7 ethyl 2-(benzen...

📜2-(苯磺酰基)-3-氧代-3-苯基丙酸乙酯置于iron Perchlorate Hexahydrate体系中,用 水,异丙醇 作为反应溶剂,化学反应 3.0H,以76%的收率获得产物苯砜乙酸乙酯
参考文献:磺酰化选择性随溶剂和温度的变化而变化:β-二羰基化合物与亚磺酸钠在铁基氧化剂作用下的反应
标题:磺酰化选择性随溶剂和温度的变化而变化:β-二羰基化合物与亚磺酸钠在铁基氧化剂作用下的反应
摘要:在铁(iii)作用下,β-酮酯与亚磺酸钠磺酰化的选择性可以通过溶剂性质和反应温度来调节.结果,可以选择性地获得α-磺酰基β-酮酯或α-磺酰基酯.将β-二酮用作原料只能得到α-磺酰基酮.
DOI:10.1002/ejoc.201900258

专利信息

专利号:US-4460786-A
优先权日:1980-07-10
标题 :Process for the selective addition of a compound having an activated carbon atom onto a substituted conjugated diene
发明人：MOREL DIDIER
权利人:RHONE POULENC IND
摘要:The selective addition of a compound having an activated carbon atom onto the carbon atom in the 4-position of a buta-1,3-diene carrying a hydrocarbon substituent on the carbon atom in the 2-position is achieved by reacting the compound having the activated carbon atom with the buta-1,3-diene carrying the hydrocarbon substituent in water or in an aqueous-alcoholic mixture in the presence of a catalyst which consists of at least one water-soluble phosphine and at least one rhodium compound, the catalyst being in solution in the water or aqueous alcoholic mixture. The products obtained are useful as precursors of intermediates for the synthesis of vitamins and perfumes.

专利号:US-4621165-A
优先权日:1983-02-24
标题 :Process for removing certain linear isoprene trimers from a mixture of isoprene trimers
发明人：MOREL DIDIER
权利人:RHONE POULENC SANTE
摘要:A process for removing from a mixture of isoprene trimers compounds of the formula ##STR1## by reacting a mixture of cyclic and linear trimers with a compound having an activated carbon atom, of the formula: n n X--CH.sub.2 --Y n n in which one of X or Y is an electron-withdrawing group and the other is an electron-withdrawing or electron-donating group, in the presence of a catalyst consisting of a water-soluble phosphine and a rhodium compound, the reaction being carried out in water or in a water-alcohol medium, and separating the cyclic trimers and linear trimers containing the chain ##STR2## from the mixture of products of the formulae: ##STR3## which can be used, in particular, in the synthesis of vitamin E.

专利号:CN-104744378-A
优先权日:2015-02-12
标 题:Synthesis of (E)-3-[4-(4-fluorophenyl)-6-isopropyl-2-(N-methyl-N-methylsulfonamido)pyrimidin-5-yl]acrolein method

专利号:SU-1708156-A3
优先权日:1985-07-16
标题 :Method for synthesis of carboxylic acid derivatives

专利号:CN-104744378-B
优先权日:2015-02-12
标题:Synthesis of a kind of (E)-3-[4-(4-fluorophenyl)-6-isopropyl-2-(N-methyl-N-methylsulfonamido)pyrimidin-5-yl]acrolein method