化学性质
这是一种无色液体,具有丙酮气味。其熔点为-40.6℃,沸点为170℃,相对密度(20/4℃)为0.914,折光率为1.4451,在75℃时遇硝酸会发生爆炸。它的闪点为48℃,可以溶于醇和醚,但不溶于水。
用途
它是甲环亚硝脲的中间体,并且也可用作溶剂。
生产方法
它由甲基环己醇氧化制得。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-甲基环己酮 | 3-Methylcyclohexanone | 591-24-2 | C7H12O | 112.172 |
2-甲基环己酮 | 2-Methylcyclohexanone | 583-60-8 | C7H12O | 112.172 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-甲基环己酮 | 3-Methylcyclohexanone | 591-24-2 | C7H12O | 112.172 |
2-甲基环己酮 | 2-Methylcyclohexanone | 583-60-8 | C7H12O | 112.172 |
—— | 4-Methyl-cycloheptanon | 5452-36-8 | C8H14O | 126.199 |
2,4-二甲基环己烷-1-酮 | 2,4-dimethylcyclohexanone | 823-55-2 | C8H14O | 126.199 |
—— | 2,4,6-trimethylcyclohexanone | 90645-54-8 | C9H16O | 140.225 |
2,5-二甲基环己酮 | 2,5-dimethylcyclohexanone | 932-51-4 | C8H14O | 126.199 |
4-甲基环己烷-1,2-二酮 | 4-methyl-1,2-cyclohexanedione | 3008-42-2 | C7H10O2 | 126.155 |
—— | 2-ethyl-4-methyl-cyclohexanone | 115684-76-9 | C9H16O | 140.225 |
—— | 2,6-diethyl-4-methyl-cyclohexanone | 861574-47-2 | C11H20O | 168.279 |
—— | 2,5-Dimethyl-cycloheptanon | 103260-99-7 | C9H16O | 140.225 |
环庚酮 | cycloheptanone | 502-42-1 | C7H12O | 112.172 |
—— | (4-methyl-cyclohexyl)-acetone | 94073-11-7 | C10H18O | 154.252 |
—— | 4-Methyl-2-formyl-cyclohexanon | 26706-86-5 | C8H12O2 | 140.182 |
—— | (trans)-4-methylcyclohexanecarbaldehyde | 7133-05-3 | C8H14O | 126.199 |
—— | 4-methylcyclohexanecarbaldehyde | 33242-79-4 | C8H14O | 126.199 |
—— | 4-methyl-4-fluorocyclohexanone | 82953-31-9 | C7H11FO | 130.162 |
1-甲基-4-氧代环己烷-1-腈 | 1-methyl-4-oxocyclohexane-1-carbonitrile | 121955-82-6 | C8H11NO | 137.181 |
1-(4-甲基环己基)乙酮 | 4-acetyl-1-methylcyclohexane | 1879-06-7 | C9H16O | 140.225 |
—— | 3-(5-methyl-2-oxocyclohexyl)propanenitrile | 83377-49-5 | C10H15NO | 165.235 |
—— | 5,4'-dimethyl-bicyclohexyl-2-one | 92370-62-2 | C14H24O | 208.344 |
—— | (-)-2(R)-Cyanoethyl-4(S)-methylcyclohexanon | —— | C10H15NO | 165.235 |
Reaction of norborn-1-yl tosylate with lithium aluminium hydride in boiling tetrahydrofuran affords a mixture of norbornan-1-ol accompanied by the ring-opened products 4-methylcyclohexanol and 3-ethylcyclopentanol as their cis/trans isomers, as well as p-thiocresol and p-tolyl disulfide. Evidence strongly suggests that the reaction is mediated by the norborn-1-yloxy radical rather than the norborn-1-yloxy anion. The process is initiated by very slow acyl oxygen fission of the norbornyl tosylate, followed by reduction of the derived p-toluenesulfinate ion to give the p-thiocresoxide anion. Transfer of an electron from the latter to the substrate and decomposition of the derived norborn-1-yl tosylate radical anion leads to the norborn-1-yloxy radical which, upon ring opening, generates the monocyclic alcohols via the corresponding ketones. It is noteworthy that, when norborn-1-yl mesylate is exposed to lithium aluminium hydride, it yields norbornan-1-ol exclusively. In the absence of an efficient electron-transfer agent, the mechanism of reaction of norborn-1-yl mesylate is suggested to involve acyl oxygen fission only.