发明名称 |
PROCESS FOR THE MANUFACTURE OF 2,2,4,4-TETRAMETHYLCYCLOBUTANEDIOL. |
摘要 |
Disclosed is a novel process for the manufacture of 2,2,4,4 tetramethylcyclobutane 1,3 diol commencing with the pyrolysis of isobutyric anhydride to produce dimethylketene. Dimethylketene is absorbed into 2,2,4,4 tetramethylcyclobutane 1,3 dione which function as the process solvents for subsequent dimerization of the dimethylketene to 2,2,4,4-tetramethylcyclobutane-1,3 -dione followed by the catalytic hydrogenation of the dione to the diol product. |
申请公布号 |
EP0681564(A1) |
申请公布日期 |
1995.11.15 |
申请号 |
EP19940907371 |
申请日期 |
1994.01.28 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
SUMNER, CHARLES, EDWAN, JR.;GUSTAFSON, BRUCE, LEROY;KNIGHT, JENNIFER, RICE |
分类号 |
B01J23/755;C07B61/00;C07C29/145;C07C35/04;C07C45/76;C07C45/89;C07C49/39;C07C49/88;(IPC1-7):C07C29/145;C07C45/90;C07C45/73 |
主分类号 |
B01J23/755 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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