发明授权
- 专利标题: [2.2] paracyclophane and derivatives thereof
- 专利标题(中): [2.2] paracyclophane及其衍生物
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申请号: US37935申请日: 1993-03-26
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公开(公告)号: US5302767A公开(公告)日: 1994-04-12
- 发明人: Richard A. Galley , Robert S. Landon , Kenneth C. Senior
- 申请人: Richard A. Galley , Robert S. Landon , Kenneth C. Senior
- 申请人地址: CT Danbury
- 专利权人: Union Carbide Chemicals & Plastics Technology Corporation
- 当前专利权人: Union Carbide Chemicals & Plastics Technology Corporation
- 当前专利权人地址: CT Danbury
- 主分类号: C07C1/32
- IPC分类号: C07C1/32 ; C07C21/24 ; C07C2/72 ; C07C25/18
摘要:
Processes are disclosed for preparing [2.2] paracyclophane and derivatives thereof by conducting the Hofmann elimination of p-methylbenzyltrimethylammonium hydroxide, or derivatives thereof, in the presence of an effective amount of oxygen to inhibit the formation of by-product polymers. The oxygen can be introduced, for example, by a purge gas stream containing molecular oxygen. Products produced by the processes are also disclosed.