丙二酸环(亚)异丙酯属于酯类衍生物,可通过丙二酸与乙酸酐反应制备。
用途丙二酸环(亚)异丙酯可用作医药合成中间体。它可以用于制备化合物3-氧代-4-苯基戊酸乙酯,并进一步生成3,4-二取代-6-苯乙基吡啶酮类HIV-1逆转录酶抑制剂。
化学性质丙二酸环(亚)异丙酯为白色晶体。熔点在94-95℃(分解),不溶于水,但能溶于乙醇和丙酮。
用途该化合物可用于有机合成,并用作保护试剂。其制备方法包括通过羟醛冷凝和三乙基胺甲醛还原生成,或者由苄基取代的米氏酸经水解、失去二氧化碳和氯磺酸进行Friedel-Crafts 环化后生成2,3-二氢-2-茚酮。在离子液体中,它还能加速醛与米氏酸之间的诺文葛尔浓缩反应(Knoevenagel condensations)。
此外,丙二酸环(亚)异丙酯也可用作医药中间体。
生产方法生产该化合物的方法是在搅拌下将浓硫酸加入到丙二酸和乙酐的悬浮液中。待大部分丙二酸溶解后冷却,并保持温度在20-25℃之间,向反应物中加入丙酮,充分混匀,继续冷却过夜。滤出析晶,用冰水洗涤并干燥,最终得到2,2-二甲基-1,3二噁烷-4,6-二酮。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
甲基丙二酸亚异丙酯 | 2,2,5-trimethyl-1,3-dioxane-4,6-dione | 3709-18-0 | C7H10O4 | 158.154 |
5-溴-2,2-二甲基-1,3-二噁烷-4,6-二酮 | 5-bromo-2,2-dimethyl-1,3-dioxane-4,6-dione | 66145-20-8 | C6H7BrO4 | 223.023 |
5-重氮米氏酸(=5-重氮-2,2-二甲基-1,3-二氧杂环己烷-4,6-二酮) | 5-diazo-2,2-dimethyl-1,3-dioxane-4,6-dion | 7270-63-5 | C6H6N2O4 | 170.125 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
甲基丙二酸亚异丙酯 | 2,2,5-trimethyl-1,3-dioxane-4,6-dione | 3709-18-0 | C7H10O4 | 158.154 |
—— | 2,2-dimethyl-4,6-dioxo-1,3-dioxane-5-carbaldehyde | 72793-38-5 | C7H8O5 | 172.138 |
—— | 5-Hydroxy-Meldrums Saeure | 75307-59-4 | C6H8O5 | 160.127 |
—— | 2,2,5,5-tetramethyl-[1,3]dioxane-4,6-dione | 15568-97-5 | C8H12O4 | 172.181 |
—— | 2,2-dimethyl-1,3-dioxane-4,5,6-trione | 75307-61-8 | C6H6O5 | 158.111 |
5-溴-2,2-二甲基-1,3-二噁烷-4,6-二酮 | 5-bromo-2,2-dimethyl-1,3-dioxane-4,6-dione | 66145-20-8 | C6H7BrO4 | 223.023 |
—— | diisopropylidenemethylenedimalonate | 23340-26-3 | C7H8O4 | 156.138 |
6.10-二氧杂螺[4.5]十烷-7,9-二酮 | 6,10-dioxaspiro[4.5]decane-7,9-dione | 58093-05-3 | C8H10O4 | 170.165 |
1,3-二噁烷-4,6-二酮,5-乙基-2,2-二甲基- | 5-ethyl-2,2-dimethyl-[1,3]dioxane-4,6-dione | 17216-65-8 | C8H12O4 | 172.181 |
1,5-二氧杂螺[5.5]十一烷-2,4-二酮 | 1,5-dioxaspiro[5.5]undecane-2,4-dione | 1658-27-1 | C9H12O4 | 184.192 |
2,2-二甲基-5-异亚丙基-1,3-二噁烷-4,6-二酮 | 5-isopropyl-2,2-dimethyl-[1,3]dioxane-4,6-dione | 72651-95-7 | C9H14O4 | 186.208 |
—— | 5-propyl meldrum's acid | 74965-91-6 | C9H14O4 | 186.208 |
5,5-二溴-2,2-二甲基-4,6-二酮-1,3-二氧杂环己烷 | 2,2-dimethyl-5,5-dibromo-1,3-dioxane-4,6-dione | 66131-14-4 | C6H6Br2O4 | 301.919 |
5-重氮米氏酸(=5-重氮-2,2-二甲基-1,3-二氧杂环己烷-4,6-二酮) | 5-diazo-2,2-dimethyl-1,3-dioxane-4,6-dion | 7270-63-5 | C6H6N2O4 | 170.125 |
1,3-二噁烷-4,6-二酮,5-亚乙基-2,2-二甲基- | 5-ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione | 18921-82-9 | C8H10O4 | 170.165 |
—— | 5,5-dichloro-meldrum’s acid | 477558-77-3 | C6H6Cl2O4 | 213.017 |
—— | 5-allyl-2,2-dimethyl-1,3-dioxan-4,6-dione | 113427-02-4 | C9H12O4 | 184.192 |
5-(氨基乙烯基)-2,2-二甲基-1,3-二氧烷-4,6-二酮 | 5-aminomethylene-2,2-dimethyl-[1,3]dioxane-4,6-dione | 15568-88-4 | C7H9NO4 | 171.153 |
—— | 5-(2-chloroethyl)-2,2-dimethyl-1,3-dioxane-4,6-dione | 505048-26-0 | C8H11ClO4 | 206.626 |
—— | isonitroso Meldrum’s acid | 81539-54-0 | C6H7NO5 | 173.125 |
甲酰基米氏酸 | 5-(hydroxymethylene)-2,2-dimethyl-1,3-dioxan-4,6-dione | 15568-87-3 | C7H8O5 | 172.138 |
—— | 5-isobutyl-2,2-dimethyl-1,3-dioxane-4,6-dione | 74965-92-7 | C10H16O4 | 200.235 |
—— | 5-butyl-2,2-dimethyl-1,3-dioxane-4,6-dione | 57742-51-5 | C10H16O4 | 200.235 |
5-乙酰基-2,2-二甲基-1,3-二恶烷-4,6-二酮 | 5-acetyl-2,2-dimethyl-1,3-dioxane-4,6-dione | 72324-39-1 | C8H10O5 | 186.164 |
3-异丙氧基-3-氧代-丙酸 | mono-iso-propyl malonate | 56766-77-9 | C6H10O4 | 146.143 |
—— | 2,2-Dimethyl-5-pentyl-1,3-dioxane-4,6-dione | 1401900-72-8 | C11H18O4 | 214.262 |
—— | 5-(2-cyanoethyl)-2,2-dimethyl-1,3-dioxan-4,6-dione | 90734-81-9 | C9H11NO4 | 197.191 |
—— | 2,2-dimethyl-5-pentadecyl-1,3-dioxane-4,6-dione | 1314006-51-3 | C21H38O4 | 354.53 |
—— | 5-heptyl-2,2-dimethyl-[1,3]dioxane-4,6-dione | 922490-94-6 | C13H22O4 | 242.315 |
—— | isopropylidene diethylmalonate | 39623-07-9 | C10H16O4 | 200.235 |
—— | 2,2-dimethyl-5-octyl-1,3-dioxane-4,6-dione | 89332-95-6 | C14H24O4 | 256.342 |
2,2-二甲基-5-(1-甲基亚乙基)-1,3-二噁烷-4,6-二酮 | 2,2-dimethyl-5-(propan-2-ylidene)-1,3-dioxane-4,6-dione | 2231-66-5 | C9H12O4 | 184.192 |
—— | 5-methoxycarbonylmethyl-2,2-dimethyl-1,3-dioxane-4,6-dione | 154317-90-5 | C9H12O6 | 216.191 |
—— | 5-Dimethylaminomethyl-2,2-dimethyl-[1,3]dioxane-4,6-dione | —— | C9H15NO4 | 201.222 |
—— | 5-Acetoxy-2,2-dimethyl-1,3-dioxan-4,6-dion | 75307-63-0 | C8H10O6 | 202.164 |
3-(2,2-二甲基-4,6-二氧杂-1,3-二氧杂-5-基)丙酸甲酯 | methyl 3-(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-yl)propanoate | 62054-77-7 | C10H14O6 | 230.218 |
1,1-环丙烷二甲酸环异亚丙酯 | cycl-isopropylidene cyclopropane-1,1-dicarboxylate | 5617-70-9 | C8H10O4 | 170.165 |
—— | 5-sec-butyl-2,2-dimethyl-1,3-dioxane-4,6-dione | 81710-05-6 | C10H16O4 | 200.235 |
—— | 2,2-dimethyl-4,6-dioxo-5-propylidene-1,3-dioxane | 25464-86-2 | C9H12O4 | 184.192 |
—— | 5,5'-Methylen-bis(2,2-dimethyl-1,3-dioxan-4,6-dion) | 4755-95-7 | C13H16O8 | 300.265 |
5-(甲氧基甲烯基)-2,2-二甲基-1,3-二氧己环-4,6-二酮 | 5-methoxymethylene-2,2-dimethyl-1,3-dioxane-4,6-dione | 15568-85-1 | C8H10O5 | 186.164 |
—— | 2,2-Dimethyl-5-(undec-10-EN-1-YL)-1,3-dioxane-4,6-dione | 89332-96-7 | C17H28O4 | 296.407 |
—— | 2,2-dimethyl-5-(N-methylaminomethylene)-1,3-dioxane-4,6-dione | 111286-54-5 | C8H11NO4 | 185.18 |
—— | 5-dimethylsulfonio-2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ide | 5362-80-1 | C8H12O4S | 204.247 |
—— | 2,2,2',2'-Tetramethyl-(5,5')-bis-(1,3)-dioxanyl-4,6,4',6'-tetron | 108539-38-4 | C12H14O8 | 286.238 |
—— | 2,2-dimethyl-5-(2-ketopropyl)-1,3-dioxane-4,6-dione | 77228-15-0 | C9H12O5 | 200.191 |
—— | isopropylidene <1-(methylthio)ethylidene>malonate | 123773-67-1 | C8H10O4S | 202.231 |
—— | dimethyl-5-(3-oxobutyl)-1,3-dioxane-4,6-dione | 90734-82-0 | C10H14O5 | 214.218 |
丙二酸单叔丁酯 | mono-tert-butyl malonate | 40052-13-9 | C7H12O4 | 160.17 |
—— | 5-di(ethoxycarbonyl)methyl-2,2-dimethyl-1,3-dioxane-4,6-dione | 154317-87-0 | C13H18O8 | 302.281 |
—— | 2,2-dimethyl-5-(cis-5-octenyl)-1,3-dioxane-4,6-dione | 419564-52-6 | C14H22O4 | 254.326 |