Phosphoric esters of alkyl or acyl dianhydro-1,4:3,6-D-glucitol, preparation process and uses thereof
US5837669A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Mar 26, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/78
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to compounds of formula: ##STR1## The invention also relates to a process for the preparation of the said compounds, which consists in: PA1 a) reacting dianhydro-1,4:3,6-D-glucitol with a compound of formula RCOOR' or RCH.sub.2 Y in the presence of a catalyst to form compounds of formula: ##STR2## in which: Y represents a halogen or an alkyl or arylsulfonic radical, PA1 R' represents a hydrogen atom or an alkyl radical having from 1 to 6 carbon atoms, PA1 R represents a saturated or unsaturated linear or branched alkyl radical containing from 5 to 21 carbon atoms, PA1 x represents CO or CH.sub.2 ; PA1 b) reacting the product of step a) with phosphorus oxychloride, a base and an anhydrous solvent, to form the compounds of formula (I) and/or (II), and optionally in separating them. The compounds which form the subject of the invention can be used in the field of surfactants, in particular for the preparation of cosmetic or hair compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.