发明名称 |
MANUFACTURE OF MACROCYCLIC POLYETHERS |
摘要 |
Process for the preparation of macrocyclic polyethers by reacting a sulphonyl halide in the presence of a base and a halogen-containng solvent, preferably chlorobenzene, with a glycol of the formula:-
<CHEM>
wherein x is an integer from 1 to 9 inclusive, and each R, which may be the same or different, represents a hydrogen atom or an aryl or lower alkyl group, or two groups R bonded to adjacent carbon atoms may form together with these carbon atoms a cyclic hydrocarbyl group. The process is of special interest for the manufacture of 18-crown-6. |
申请公布号 |
DE3165752(D1) |
申请公布日期 |
1984.10.04 |
申请号 |
DE19813165752 |
申请日期 |
1981.05.22 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
KRIJNEN, WILHELMUS JOHANNES;GROTENHUIS, PAULUS ALEXANDER M. |
分类号 |
C07D323/00;(IPC1-7):C07D323/00 |
主分类号 |
C07D323/00 |
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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