Process for the preparation of 1,2-dioxetane compounds and novel sulfur-substituted 1,2-dioxetane compounds as intermediates
US5936101A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/65512
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing a stable triggerable dioxetane comprising; PA1 (a) reacting a vinyl sulfide compound containing a sulfur-substituent SR.sub.4, wherein R.sub.4 is an organic group containing 1 to 20 carbon atoms and optionally heteroatoms, with oxygen and light in the presence of a photosensitizer to form an intermediate sulfur-substituted dioxetane compound; and PA1 (b) reacting the sulfur-substituted dioxetane compound with an electrophilic compound E--Y and a hydroxylic compound R.sub.5 OH selected from the group consisting of alcohols, phenols and carboxylic acids or their salts and containing an OR.sub.5 group to replace the SR.sub.4 group of the dioxetane with the OR.sub.5 group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.