二烯丙基丙二酸二乙酯是一种有机中间体,可通过丙二酸二乙酯与烯丙基溴的亲核取代反应制备,常用的碱包括钠氢和乙醇钠。
这种物质为液体状,主要用作医药、原料及农药中间体。
其制备过程如下:在5-10°C之间,向含有10 g(62.5 mmol)丙二酸二乙酯和14.25 g(187.5 mmol)烯丙基溴的混合物中缓慢加入乙醇钠的浓溶液(由8.6 g钠溶解在70 mL乙醇中制成)。完成乙醇钠添加后,继续以相同温度搅拌反应混合物1小时。随后移除冷水浴,并让混合物在室温下过夜搅拌。
接下来,除去过剩溶剂,将残余物加入水中并用乙酸乙酯萃取。使用Na2SO4干燥有机相并进行蒸发,得到浅黄色液体。最后通过真空蒸馏进一步纯化粗产品,最终获得无色的纯净物质。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | Diethyl 2-(3,3-dideuterioprop-2-enyl)-2-prop-2-enylpropanedioate | 1228236-01-8 | C13H20O4 | 242.284 |
2-烯丙基-2-(2-丙炔基)丙二酸二乙酯 | 4,4-bis(ethoxycarbonyl)-1-hepten-6-yne | 101268-55-7 | C13H18O4 | 238.284 |
—— | diethyl 2-(2-bromo-2-propenyl)-2-(2-propenyl)propanedioate | 118453-14-8 | C13H19BrO4 | 319.195 |
烯丙基丙二酸二乙酯 | (2-propenyl)propanedioic acid diethyl ester | 2049-80-1 | C10H16O4 | 200.235 |
—— | diethyl 2-allyl-2-(oxiran-2-ylmethyl)malonate | 34706-53-1 | C13H20O5 | 256.299 |
—— | diethyl 2-allyl-2-bromomalonate | 78331-59-6 | C10H15BrO4 | 279.131 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-allyl-2-ethoxycarbonyl-pent-4-enoic acid | —— | C11H16O4 | 212.246 |
—— | diethyl (but-2'-en-1'-yl)(prop-2''-en-1''-yl)propanedioate | 112586-60-4 | C14H22O4 | 254.326 |
—— | 2-(3-methyl-2-buten-1-yl)-2-(2-propen-1-yl)malonic acid, diethyl ester | 408333-38-0 | C15H24O4 | 268.353 |
3-环戊烯-1,1-二甲酸二乙酯 | Cyclopent-3-ene-1,1-dicarboxylic acid diethyl ester | 21622-00-4 | C11H16O4 | 212.246 |
1-(乙氧羰基)-3-环戊烯-1-甲酸 | 3-Cyclopenten-1,1-dicarbonsaeure-monoethylester | 76910-08-2 | C9H12O4 | 184.192 |
—— | 2-butyl-2-ethoxycarbonylpenten-4-oic acid ethyl ester | 1575-76-4 | C14H24O4 | 256.342 |
—— | diethyl allyl(methallyl)malonate | 5309-50-2 | C14H22O4 | 254.326 |
—— | diethyl 2-(4'-bromobutyl)(prop-2''-en-1''-yl)propanedioate | 764583-44-0 | C14H23BrO4 | 335.238 |
3-环戊烯-1,1-二甲酸二甲酯 | Dimethyl 3-cyclopentene-1,1-dicarboxylate | 84646-68-4 | C9H12O4 | 184.192 |
烯丙基丙二酸二乙酯 | (2-propenyl)propanedioic acid diethyl ester | 2049-80-1 | C10H16O4 | 200.235 |
—— | diethyl allyl(cinnamyl)malonate | 139566-47-5 | C19H24O4 | 316.397 |
3-亚甲基-1,1-环己烷二甲酸二乙酯 | diethyl 3-methylene-1,1-cyclohexanedicarboxylate | 177895-64-6 | C13H20O4 | 240.299 |
二丙基丙二酸二乙酯 | 2,2-dipropyl-malonic acid diethyl ester | 6065-63-0 | C13H24O4 | 244.331 |
—— | (E)-diethyl (but-2-en-1-yl)malonate | 84200-37-3 | C11H18O4 | 214.262 |
1,1-二甲酸乙酯环戊烷 | cyclopentane-1,1-dicarboxylic acid diethyl ester | 4167-77-5 | C11H18O4 | 214.262 |
(3-甲基丁-2-烯基)丙二酸二乙酯 | diethyl (3-methylbut-2-enyl)malonate | 22539-80-6 | C12H20O4 | 228.288 |
—— | diethyl 3,4-dimethylcyclopent-3-ene-1,1-dicarboxylate | 74160-66-0 | C13H20O4 | 240.299 |
—— | 2-(2-methyl-allyl)-malonic acid diethyl ester | 1575-67-3 | C11H18O4 | 214.262 |
—— | 4,4-dicarboethoxy-1,5-heptadiene | —— | C13H20O4 | 240.299 |
—— | 2,2-diallylmalonic acid | 4372-31-0 | C9H12O4 | 184.192 |
—— | ethyl 2,2-diallylpent-4-enoate | 74636-60-5 | C13H20O2 | 208.301 |
—— | 3-methyl-4-methylene-cyclopentane-1,1-dicarboxylic acid diethyl ester | 93638-77-8 | C13H20O4 | 240.299 |
—— | dihydro-5-methylenefuran-2(3H)-one-3-spirodihydro-5’-methylenefuran-2’(3H)-one | 65371-44-0 | C9H8O4 | 180.16 |
—— | trans-diethyl-2-(3,5-bis-(trifluoromethyl)cinnamyl)-2-allylmalonate | 1114376-65-6 | C21H22F6O4 | 452.394 |
—— | diethyl (E)-cinnamyl malonate | 63082-55-3 | C16H20O4 | 276.332 |
—— | bis-(2,3-epoxy-propyl)-malonic acid diethyl ester | —— | C13H20O6 | 272.298 |
—— | diethyl 3-chloromethyl-4-methylcyclopentane-1,1-dicarboxylate | 1202400-51-8 | C13H21ClO4 | 276.76 |
—— | diethyl (4-bromobutyl)malonate | 132525-49-6 | C11H19BrO4 | 295.173 |
2-(2-烯丙基)-4-戊酸乙酯 | 4-ethoxycarbonyl-1,6-heptadiene | 18325-74-1 | C10H16O2 | 168.236 |
—— | diethyl 6-oxa-bicyclo[3.1.0]hexane-3,3-dicarboxylate | 183065-65-8 | C11H16O5 | 228.245 |
3,8-二甲基-2,7-二氧杂螺[4.4]壬烷-1,6-二酮 | 3,8-dimethyl-2.7-dioxaspiro<4.4>nonane-1,6-dione | 3048-76-8 | C9H12O4 | 184.192 |
—— | diethyl cyclopent-2-ene-1,1-dicarboxylate | 541506-71-2 | C11H16O4 | 212.246 |