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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 371542Generated: October 25, 2026

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

https://huagongshe.com/reaction/371542

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoateHCID 54295620—
Reactant3-Chloro-2,4,6-trimethyl-benzyl-triphenylphosphonium chlorideHCID 86735897—
Product9-(3-Chloro-2,4,6-trimethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl esterHCID 189816—

Reaction Steps

3-chloro-2,4,6-trimethyl-benzyl-triphenyl-phosphonium chloride is condensed with 7-formyl-3-methyl-octa-2,4,6-trien-1-oic acid ethyl ester to produce 9-(3-chloro-2,4,6-trimethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid ethyl ester, m.p.: 84°-85° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04532355
Source datasetuspto-grants-1985_07
ORD IDord-bb4a9f49d5ae4c7fa2610c1b11d7c41f
Source noteuspto-grants-1985_07