HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoate → 9-(4-Methoxy-2,6-dimethyl-3-ethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoate | HCID 54295620 | — |
| Reactant | 4-Methoxy-2,6-dimethyl-3-ethyl-benzyl-triphenyl-phosphonium chloride | HCID 86735905 | — |
| Product | 9-(4-Methoxy-2,6-dimethyl-3-ethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl ester | HCID 54238580 | — |
Reaction Steps
4-methoxy-2,6-dimethyl-3-ethyl-benzyl-triphenyl-phosphonium chloride is condensed with 7-formyl-3-methyl-octa-2,4,6-trien-1-oic acid ethyl ester to produce 9-(4-methoxy-2,6-dimethyl-3-ethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl ester which is converted by the procedure of Example 7 to form 9-(4-methoxy-2,6-dimethyl-3-ethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid, m.p.: 197°-198° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04105681 |
| Source dataset | uspto-grants-1978_08 |
| ORD ID | ord-46dfa938607941909fff038db1555f22 |
| Source note | uspto-grants-1978_08 |