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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 371533Generated: October 25, 2026

Butyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoate → 9-(2,3,4,6-Tetra-methyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid

https://huagongshe.com/reaction/371533

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoateHCID 53845956—
Reactant9-(2,3,4,6-Tetramethylphenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid butyl esterHCID 54530113—
Reactant2,3,4,6-Tetramethyl-benzyltriphenylphosphonium chlorideHCID 85840923—
Product9-(2,3,4,6-Tetra-methyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acidHCID 53764194—

Reaction Steps

By the procedure of Example 14, 9-(2,3,4,6-tetramethyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid butyl ester is manufactured from 2,3,4,6-tetramethyl-benzyltriphenylphosphonium chloride by reaction with 7-formyl-3-methyl-octa-2,4,6-trien-1-oic acid butyl ester. From this product, there is produced by the procedure of Example 15 9-(2,3,4,6-tetra-methyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid of melting point 201°-202° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04532355
Source datasetuspto-grants-1985_07
ORD IDord-2da8e37389a241cdbbad06bdd49a59fd
Source noteuspto-grants-1985_07