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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1358715Generated: October 31, 2026

Hexamethylenetetramine → 4-Hydroxy-3,5-bis(isopropyl)benzaldehyde

https://huagongshe.com/reaction/1358715

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHexamethylenetetramineHCID 4101—
ReactantPropofolHCID 4943—
ReactantTrifluoroacetic acidHCID 6422—
ReactantHexaneHCID 8058—
Product4-Hydroxy-3,5-bis(isopropyl)benzaldehydeHCID 8271226%

Reaction Steps

18 g of 2,6-di isopropyl phenol and 1.8 g HMTA (hexamethylene tetraamine) in 60 ml TFA (trifluoro acetic acid) was refluxed 3.5 hours. Workup, chromatography on silica gel (CH2Cl2) and trituration with hexane gave 5.3 g, 26% yield, white solid, mp-103° C. (3,5,-di-iso-propyl 4 hydroxybenzaldehyde). NMR CDCl3 δ 9.87 (1H, S, CHO), 7.63 (2H, S), 3.19 (2H, septet, J=7.7 Hz), 1.30 (12H, d, J=7.7 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06596878B2
Source datasetuspto-grants-2003_07
ORD IDord-b1bc972960c047fb91438dffdba28186
Source noteuspto-grants-2003_07