CAS NO:935-92-2; 2,3,5-三甲基-2,5-环己二烯-1,4-二酮

CAS:

935-92-2

分子式:

C9H10O2

分子量:

150.18

闪点:

77 ℃

中文名称:

2,3,5-三甲基-2,5-环己二烯-1,4-二酮

2,3,5-三甲基-1,4-苯醌

英文名称:

5-Cyclohexadiene-1,4-dione, 2,3,5-trimethyl-2

2,5-Cyclohexadiene-1,4-dione,2,3,5-trimethyl-

4-dione, 2,3,5-trimethyl-5-cyclohexadien-1

2,3,5-trimethyl-2,5-cyclohexadien-1,4-dione

2,3,5-trimethyl-p-benzoquinone

2,3,5-trimethylquinone

4-dione, 2,3,5-trimethyl-5-cyclohexadiene-1

trimethyl-benzoquinon

cumoquinone

2,3,5-trimethyl-p-benzoquinon

p-pseudocumoquinone

psi-cumoquinone

trimethyl-1,4-benzoquinone

trimethyl-p-benzoquinone

trimethyl-p-quinone

trimethylbenzoquinone

trimethylchinon

trimethylquinone

2,3,5-Trimethyl-1,4-benzoquinone

2,3,5-Trimethyl-2,5-cyclohexadiene-1,4-dione

2,3,5-Tri-methylquinone

性质描述:

黄色结晶（水）或针状结晶（乙醚）。熔点32℃，沸点53℃ /53.3Pa，随水蒸气挥发。

生产方法:

用1,2,4-三甲苯以浓硫酸磺化，生成2,4,5-三甲基苯磺酸，然后以硝酸钾及浓硫酸硝化，得2,4,5-三甲基-3,6-二硝酸苯磺酸钾，后者还原得2,3,5-三甲基对苯二胺二盐酸盐，进而以硫酸和重铬酸钠氧化制得该品。

用途:

维生素E醋酸酯的中间体。

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