2-甲氧羰基环戊酮是一种有机中间体,可以通过两种方法制备:一是由环戊酮和碳酸二甲酯通过一步反应生成;二是由己二酸二甲酯通过钠氢或甲醇钠催化关环反应得到。
制备将126g环戊酮、567g碳酸二甲酯和12.6g固体碱催化剂KF/Al₂O₃(负载量为10%)加入到带有搅拌器、冷凝管和温度计的1000ml三口瓶中,回流反应3小时。冷却后,过滤掉催化剂,减压蒸除溶剂并进行精馏,在11mmHg压力下于102℃~104℃收集馏分,得到无色透明液体2-甲氧羰基环戊酮共167g。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-氧代环戊羧酸乙酯 | 2-ethoxycarbonyl-1-cyclopentanone | 611-10-9 | C8H12O3 | 156.181 |
—— | methyl 1-(2-cyanoethyl)-2-oxocyclopentanecarboxylate | 87636-00-8 | C10H13NO3 | 195.218 |
—— | methyl 3-(1-methoxycarbonyl-2-oxocyclopent-1-yl)propionate | 125113-57-7 | C11H16O5 | 228.245 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-氧代环戊羧酸乙酯 | 2-ethoxycarbonyl-1-cyclopentanone | 611-10-9 | C8H12O3 | 156.181 |
2-氧代-环戊烷羧酸丁酯 | butyl 2-oxocyclopentanecarboxylate | 6627-69-6 | C10H16O3 | 184.235 |
(1R)-2-氧代环戊烷-1-羧酸己基酯 | n-hexyl 2-oxocyclopentane-1-carboxylate | 72845-82-0 | C12H20O3 | 212.289 |
—— | isobutyl 2-oxocyclopentanecarboxylate | 162614-04-2 | C10H16O3 | 184.235 |
—— | 3-methyl-2-oxo-cyclopentanecarboxylic acid methyl ester | 57964-61-1 | C8H12O3 | 156.181 |
2-氧代环戊羧酸烯丙酯 | allyl 2-oxocyclopentane-1-carboxylate | 75265-67-7 | C9H12O3 | 168.192 |
—— | 1,2-Bis(2-oxocyclopentylcarbonyloxy)ethane | 134512-81-5 | C14H18O6 | 282.293 |
—— | 2-(methylthio)ethyl 2-oxocyclopentane-1-carboxylate | 872692-20-1 | C9H14O3S | 202.274 |
—— | (Z)-3-Hexenyl 2-oxocyclopentanecarboxylate | 94087-84-0 | C12H18O3 | 210.273 |
1-甲基-2-氧代环戊烷羧酸甲酯 | methyl 1-methyl-2-oxocyclopentane-1-carboxylate | 30680-84-3 | C8H12O3 | 156.181 |
甲基1-甲基-2-氧代环戊烷羧酸酯 | (R)-methyl 1-methyl-2-oxocyclopentanecarboxylate | 162489-18-1 | C8H12O3 | 156.181 |
2-环戊酮羧酸 | 2-oxocyclopentane-1-carboxylic acid | 50882-16-1 | C6H8O3 | 128.128 |
—— | 4-cyanobut-3-enyl 2-oxocyclopentanecarboxylate | —— | C11H13NO3 | 207.229 |
2-环己酮甲酸乙酯 | Ethyl 2-oxocyclohexanecarboxylate | 1655-07-8 | C9H14O3 | 170.208 |
—— | Methyl 3-but-3-enyl-2-oxocyclopentane-1-carboxylate | 179822-39-0 | C11H16O3 | 196.246 |
—— | [(E)-5-oxohex-3-enyl] 2-oxocyclopentane-1-carboxylate | 1335043-35-0 | C12H16O4 | 224.257 |
—— | cyclohexyl 2-oxocyclopentanecarboxylate | 6946-38-9 | C12H18O3 | 210.273 |
—— | 1-ethyl-2-oxocyclopentane carboxylic acid methyl ester | 25684-00-8 | C9H14O3 | 170.208 |
—— | [(E)-4-methoxy-4-oxobut-2-enyl] 2-oxocyclopentane-1-carboxylate | 1335043-34-9 | C11H14O5 | 226.229 |
2-氧代-1-丙基环戊烷-1-羧酸甲酯 | Methyl 2-(1-propyl)cyclopentanone 2-carboxylate | 110528-54-6 | C10H16O3 | 184.235 |
2-氧代-1-丁基-1-环戊烷羧酸甲酯 | methyl 1-butyl-2-oxocyclopentane-1-carboxylate | 61777-25-1 | C11H18O3 | 198.262 |
2-氧代-1-戊基环戊烷羧酸甲酯 | 2-n-pentyl-2-carbomethoxy-1-cyclopentanone | 55443-08-8 | C12H20O3 | 212.289 |
—— | methyl 1-(3,3-dimethylbutyl)-2-oxocyclopentanecarboxylate | 1352029-31-2 | C13H22O3 | 226.316 |
—— | methyl 1-hydroxymethyl-2-oxo-cyclopentane-1-carboxylate | 744217-30-9 | C8H12O4 | 172.181 |
—— | methyl (+/-)-2-oxo-1-(3-oxopropyl)cyclopentanecarboxylate | 87636-03-1 | C10H14O4 | 198.219 |
2-乙酰基-5-氧代环戊烷-1-羧酸甲酯 | methyl 2-acetyl-5-oxocyclopentane-1-carboxylate | 86296-18-6 | C9H12O4 | 184.192 |
—— | 2-(6-carbethoxyhexyl)-2-carbomethoxycyclopentanone | 41301-58-0 | C16H26O5 | 298.379 |
—— | 2-(Carbomethoxy)-2-(4-pentenyl)cyclopentanone | 74283-18-4 | C12H18O3 | 210.273 |
—— | 2-oxo-1-pent-4-ynylcyclopentanecarboxylic acid methyl ester | 223796-03-0 | C12H16O3 | 208.257 |
—— | 2-oxo-1-(3-oxobutyl)cyclopentanecarboxylic acid methyl ester | 31208-52-3 | C11H16O4 | 212.246 |
—— | methyl 1-(4-bromobutyl)-2-oxocyclopentane-1-carboxylate | 61114-31-6 | C11H17BrO3 | 277.158 |
2-甲氧基甲基环戊酮 | 2-methoxymethylcyclopentanone | 35457-02-4 | C7H12O2 | 128.171 |
—— | (butene-3-yl)-1 oxo-2 cyclopentanecarboxylate de methyle | 82343-68-8 | C11H16O3 | 196.246 |
—— | methyl 2-oxo-3-(pent-2-yn-1-yl)cyclopentanecarboxylate | 192720-40-4 | C12H16O3 | 208.257 |
—— | methyl 1-(3-butyn-1-yl)-2-oxocyclopentanecarboxylate | 87635-96-9 | C11H14O3 | 194.23 |
—— | methyl 1-(2-cyanoethyl)-2-oxocyclopentanecarboxylate | 87636-00-8 | C10H13NO3 | 195.218 |
—— | methyl 1-(3-iodopropyl)-2-oxocyclopentane-1-carboxylate | 110528-50-2 | C10H15IO3 | 310.132 |
3-溴-2-氧代环戊烷-1-羧酸甲酯 | 2-Brom-cyclopentanon-(1)-carbonsaeure-(5)-methylester | 36596-61-9 | C7H9BrO3 | 221.051 |
—— | methyl 1-(3-chloropropyl)-2-oxocyclopentanecarboxylate | 112818-19-6 | C10H15ClO3 | 218.68 |
—— | methyl 3-(1-methoxycarbonyl-2-oxocyclopent-1-yl)propionate | 125113-57-7 | C11H16O5 | 228.245 |
—— | methyl (1R)-1-(3-methoxy-3-oxopropyl)-2-oxocyclopentane-1-carboxylate | 125113-57-7 | C11H16O5 | 228.245 |
—— | Methyl 1-(2-Propyl)-2-oxocyclopentane-1-carboxylate | 74036-92-3 | C10H16O3 | 184.235 |
—— | 2,2-bis(methoxycarbonyl)cyclopentanone | 134149-19-2 | C9H12O5 | 200.191 |
环戊羧酸,2-羰基-,苯基甲基酯 | benzyl 2-oxocyclopentanecarboxylate | 112207-03-1 | C13H14O3 | 218.252 |
—— | 2-methoxycarbonyl-3-(4-methylsilanyl-3-butynyl)cyclopentanone | 210366-40-8 | C14H22O3Si | 266.412 |
—— | methyl 2-oxo-1-(2-oxopropyl)-cyclopentanecarboxylate | 92825-45-1 | C10H14O4 | 198.219 |
—— | 1-(penta-3,4-dienyl)-2-oxocyclopentanecarboxylic acid methyl ester | 850425-89-7 | C12H16O3 | 208.257 |
—— | Methyl 1-(3-ethoxy-3-oxopropyl)-2-oxocyclopentanecarboxylate | 412032-96-3 | C12H18O5 | 242.272 |
—— | 2-ethoxycarbonyl-2-(3-oxobutyl)cyclopentanone | 61771-81-1 | C12H18O4 | 226.273 |
—— | methyl 1-allyl-2-oxocyclopentane-1-carboxylate | 111239-40-8 | C10H14O3 | 182.219 |
—— | methyl (R)-1-(prop-2-enyl)-2-oxocyclopentanecarboxylate | —— | C10H14O3 | 182.219 |
—— | 2-propargyl-2-(carbomethoxy)cyclopentanone | —— | C10H12O3 | 180.203 |
—— | methyl 1-bromoethyl-2-oxocyclopentanoate | 122898-05-9 | C9H13BrO3 | 249.104 |
—— | methyl 1-chloro-2-oxocyclopentanecarboxylate | 1263104-44-4 | C7H9ClO3 | 176.6 |
甲基1-氟-2-氧代环戊烷羧酸酯 | methyl 1-fluoro-2-oxocyclopentanecarboxylate | 141420-01-1 | C7H9FO3 | 160.145 |
—— | (-)-menthyl 2-oxocyclopentane-1-carboxylate | 283174-78-7 | C16H26O3 | 266.381 |
—— | (1R,2S,5R)-(-)-menthyl (1R)-2-oxocyclopentanecarboxylate | 138060-57-8 | C16H26O3 | 266.381 |
—— | 2-Brom-2-carbomethoxycyclopentanon | 36596-60-8 | C7H9BrO3 | 221.051 |
—— | (+/-)-2-[1-(methoxycarbonyl)-2-oxocyclopentyl]ethyl acetate | 54460-31-0 | C11H16O5 | 228.245 |
—— | Pyridin-4-ylmethyl 2-oxocyclopentane-1-carboxylate | 1400304-17-7 | C12H13NO3 | 219.24 |
—— | α-allyloxymethyl-cyclopentanone | 201423-71-4 | C9H14O2 | 154.209 |
—— | 2-carbomethoxy-2-(1-methyl-3-oxobutyl)cyclopentanone | 87307-57-1 | C12H18O4 | 226.273 |
—— | 1-adamantyl 2-oxocyclopentanecarboxylate | 934384-45-9 | C16H22O3 | 262.349 |
—— | 2-Vinyl-2-methoxycarbonyl-cyclopentanon-(1) | 90534-73-9 | C9H12O3 | 168.192 |
—— | (3-methoxycarbonyl-2-oxo-cyclopentyl)-glyoxylic acid methyl ester | 854419-13-9 | C10H12O6 | 228.202 |
2-氧代-1-(3-氧代环己基)环戊烷-1-羧酸甲酯 | methyl 2-oxo-1-(3-oxocyclohexyl)cyclopentanecarboxylate | 115663-64-4 | C13H18O4 | 238.284 |
1-(溴甲基)-2-氧代环戊烷-1-羧酸甲酯 | methyl 1-bromomethyl-2-oxocyclopentanecarboxylate | 107986-99-2 | C8H11BrO3 | 235.078 |
—— | 1-(buta-2,3-dienyl)-2-oxocyclopentanecarboxylic acid methyl ester | 104323-51-5 | C11H14O3 | 194.23 |
—— | 1-allyl-2-oxo-cyclopentanecarboxylic acid ethyl ester | 41975-67-1 | C11H16O3 | 196.246 |
—— | 2-(methylthio)ethyl 2-oxo-1-(3-oxobutyl)cyclopentane-1-carboxylate | 872692-29-0 | C13H20O4S | 272.365 |
—— | 2-oxo-1-(3-oxo-butyl)-cyclohexanecarboxylic acid ethyl ester | 69881-57-8 | C13H20O4 | 240.299 |
—— | methyl 1-(3-bromo-2-propenyl)-2-oxocyclopentane-1-carboxylate | 112818-21-0 | C10H13BrO3 | 261.115 |
5-氧代环辛烷-1-羧酸甲酯 | methyl 5-oxocyclooctane carboxylate | 2616-94-6 | C10H16O3 | 184.235 |
—— | methyl 5-oxocyclononane-1-carboxylate | 112818-20-9 | C11H18O3 | 198.262 |
2-氧代-1-(2-戊炔基)环戊烷羧酸甲酯 | methyl 2-oxo-1-(pent-2-yn-1-yl)cyclopentanecarboxylate | 68480-23-9 | C12H16O3 | 208.257 |
—— | ethyl 1-methoxycarbonyl-2-oxocyclopent-1-ylacetate | 41301-65-9 | C11H16O5 | 228.245 |
—— | 2-allyl-2-carboisobutoxy-cyclopentanone | —— | C13H20O3 | 224.3 |
—— | heptane-1,4,7-tricarboxylic acid trimethyl ester | 52323-06-5 | C13H22O6 | 274.314 |
—— | 2-methoxycarbonyl-2-(2-cyclopropylideneethyl)cyclopenanone | 130715-15-0 | C12H16O3 | 208.257 |
4-氧代环庚烷羧酸甲酯 | methyl 4-oxocycloheptane-1-carboxylate | 17607-00-0 | C9H14O3 | 170.208 |
3-氧代-环己烷羧酸甲酯 | 3-oxo-cyclohexanecarboxylic acid methyl ester | 13148-83-9 | C8H12O3 | 156.181 |