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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 638662Generated: November 2, 2026

Dimethylamine → 2,4-Di(propan-2-yl)spiro[5.5]undeca-1,4,8-trien-3-one

https://huagongshe.com/reaction/638662

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylamineHCID 674—
ReactantFormaldehydeHCID 712—
ReactantPropofolHCID 4943—
Reactant1,3-ButadieneHCID 7845—
SolventIsopropanolHCID 3776—
Product2,4-Di(propan-2-yl)spiro[5.5]undeca-1,4,8-trien-3-oneHCID 13574726—

Reaction Steps

Following the same general procedure as in Example I, 50 mmols of 2,6-diisopropylphenol were reacted with 75 mmols of paraformaldehyde, 75 mmols of aqueous dimethylamine, and 210 mmols of 1,3-butadiene in 100 g of isopropyl alcohol at 190°-200° C. for five hours. The process resulted in the formation of 2,4-diisopropylspiro[5.5]undeca-1,4,8-trien-3-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04562293
Source datasetuspto-grants-1985_12
ORD IDord-cd9c511510a0404c99b5009e26ffaae6
Source noteuspto-grants-1985_12