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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2058347Generated: October 31, 2026

Ethyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoate → 9-(4-Methoxy-3,5-diethyl-2,6-dimethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl ester

https://huagongshe.com/reaction/2058347

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoateHCID 54295620—
Reactant4-Methoxy-3,5-diethyl-2,6-dimethyl-benzyl-triphenylphosphonium chlorideHCID 86735907—
Product9-(4-Methoxy-3,5-diethyl-2,6-dimethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl esterHCID 54203437—

Reaction Steps

4-methoxy-3,5-diethyl-2,6-dimethyl-benzyl-triphenylphosphonium chloride is condensed with 7-formyl-3-methyl-octa-2,4,6-trien-1-oic acid ethyl ester to produce the 9-(4-methoxy-3,5-diethyl-2,6-dimethyl-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 9-(4-methoxy-3,5-diethyl-2,6-dimethyl-phenyl)-acid, m.p: 153°-154° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04215215
Source datasetuspto-grants-1980_07
ORD IDord-5f953058510a4b2188f5458a0608cc8f
Source noteuspto-grants-1980_07