Method for producing ethylenically unsaturated graftable orthoesters
US5231197A · kind A · utility
2Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Jun 1, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Ethylenically unsaturated graftable monomers are prepared by reacting hydroxy substituted orthoesters with electrophilic reagents, an alkaline reagent, and a phase transfer catalyst. Preferably the hydroxy orthoester is 4-hydroxymethyl-2-methoxy-2-methyl-1,3-dioxolane, and the preferred reagent is acryloyl chloride with sodium hydroxide as the base and methyltrialkylammonium (C.sub.8-10) chloride as the phase transfer catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.