Methylenically-substituted undecadienes
US4399301A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1979 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Sep 13, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/145
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methylenically-substituted undecadiene compounds having the structural formula: ##STR1## wherein X is selected from the group consisting of lower acyloxy, aryloxy having from 6 to 14 carbon atoms, lower alkoxy and hydroxy, and 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, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16 are independently selected from the group consisting of hydrogen and lower alkyl, with the proviso that at least one of R.sub.3, R.sub.5 and R.sub.6 and at least one of R.sub.9, R.sub.10, R.sub.11 and R.sub.12 must be hydrogen, are prepared by reacting a diene having the structural formula: ##STR2## with a conjugated diene having the structural formula: ##STR3## in the presence of a rhodium/trivalent phosphorus catalyst, with the atomic ratio of the trivalent phosphorus to the rhodium therein being at least 1.5. The compounds can be hydrogenated and saponified to form known alcohols which are precursors for biodegradable detergents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.