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US 6,486,353 B2Granted
Process for producing optically active 3,7-dimethyl-6-octenol and process for producing intermediate therefor
AssigneeTakasago International Corporation
InventorsShinya Yamada, Yoshiki Okeda, Yoji Hori, Toshimitsu Hagiwara
Life of this patent
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Abstract
Cis-3,7-dimethyl-2,7-octadienylamine containing from 2 to 10% by weight cis-3,7-dimethyl-2,7-octadienylamine is prepared by subjecting a mixture of an alkylamine and isoprene in a molar ratio of 1:4 to 1:4.5 to telomerization at 80 to 100° C. for from 2.5 to 3.5 hours in the presence of an alkyllithium catalyst and/or phenyllithium catalyst.
Claims5
A process for producing a cis-3,7-dimethyl-2,6-octadienylamine compound represented by general formula (3):
- wherein R1 and R2 each represents a hydrogen atom or an alkyl, aralkyl, or aryl group having 1 to 10 carbon atoms,
- containing from 2 to 10% by weight cis-3,7-dimethyl-2,7-octadienylamine compound represented by general formula (4):
- wherein R1 and R2 each represents a hydrogen atom or an alkyl, aralkyl, or aryl group having 1 to 10 carbon atoms,
- which comprises subjecting a mixture of an alkylamine and isoprene in a molar ratio of from 1:4 to 1:4.5 to telomerization at a reaction temperature of from 80 to 100° C. for from 2.5 to 3.5 hours in the presence of an alkyllithium catalyst and/or phenyllithium catalyst.
1 more element
Dependencies are inferred from the claim text.