Compounds and process
US5616750A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1993 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Oct 6, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/72
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of formula (I): ##STR1## n which M is a transition metal ion; A is a counter-ion if required; PA1 r, s and t are independently 0 to 3 such that r+s+t is in the range of 1 to 3; PA1 R.sup.a, R.sup.b, R.sup.c are each independently hydrogen or CH.sub.2 OR' where R' is hydrogen or an organic group; PA1 B and E are independently oxygen, CH.sub.2, NR.sup.d in which R.sup.d is alkyl, hydrogen, alkylcarbonyl, or arylcarbonyl or SO.sub.n where n is 0 or an integer 1 or 2, with the proviso that B and E are not simultaneously CH.sub.2 and that when B is oxygen, NR.sup.d or SO.sub.n, then r cannot be 0, and when E is oxygen, NR.sup.d or SO.sub.n, then t cannot be 0; PA1 R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are independently hydrogen, alkyl or alkoxy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.