Method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom
US5241098A · kind A · utility
2Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1990 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Nov 16, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C68/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention pertains to a method of forming a salt of 4-hydroxystyrene by reacting 4-acetoxystyrene with a suitable base in a suitable solvent system. Subsequently, or simultaneously, the salt of 4-hydroxystyrene can be reacted, preferably in situ, with di-tertiary-butyl-dicarbonate to form 4-tertiary-butoxycarbonyloxystyrene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.