High performance chiral selector
US5290440A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Jun 23, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C237/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high performance chiral selector having the formula: ##STR1## wherein Ar is a monocyclic or ortho-fused polycyclic aromatic moiety having up to 10 ring carbon atoms, either of which may be unsubstituted or substituted with one or more C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, NO.sub.2, N(R.sub.5).sub.3.sup.+, CN, COOR.sub.6, SO.sub.3 H and COR.sub.7 groups wherein R.sub.5, R.sub.6 and R.sub.7 are each independently hydrogen or C.sub.1 to C.sub.6 alkyl; PA1 R.sub.1 and R.sub.2 ar each independently hydrogen, C.sub.1 to C.sub.6 alkyl or phenyl; PA1 R.sub.3 and R.sub.4 are each independently C.sub.1 to C.sub.12 alkyl or C.sub.2 to C.sub.12 alkenyl; and PA1 m and n are each independently zero or 1, said compound being an R or an S enantiomer or a mixture of R and S enantiomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.