Chiral diarsine compounds
US6037479A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F15/008
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel, chiral diarsine compounds, which are present in the (R)- or (S)- or (rac)-form, of the formula ##STR1## wherein R signifies an optionally substituted aryl from the group of phenyI, naphthyl, furyl and thienyl; C.sub.3-8 -cycloalkyl or C.sub.1-8 -alkyl; PA1 R.sup.1, R.sup.2, R.sup.3 each independently signify C.sub.1-8 -alkyl, C.sub.1-8 -alkoxy, aryloxy, F or Cl, PA1 R.sup.2 and R.sup.3 each independently also signify hydrogen or PA1 R.sup.1 and R.sup.2 together signify tetramethylene or a benzo or benzofuro system or dioxymethylene on the respective benzene ring; or PA1 R.sup.2 and R.sup.3 together signify dioxymethylene, and the manufacture of the diarsine compounds of formula I, as well as complexes of the compounds of formula I with Group VIII metal and their use for enantioselective reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.