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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2372034Generated: October 26, 2026

Formaldehyde → 3-(3,5-Dimethoxy-4-hydroxybenzyl)-benzothiazole-2-thione

https://huagongshe.com/reaction/2372034

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant2,6-DimethoxyphenolHCID 7041—
ReactantHCID 178418395HCID 178418395—
CatalystDibutylamineHCID 8148—
SolventEthanolHCID 702—
Product3-(3,5-Dimethoxy-4-hydroxybenzyl)-benzothiazole-2-thioneHCID 1980749682%

Reaction Steps

16.7 g of mercaptobenzothiazole, 3.0 g of paraformaldehyde, 15.4 g of 2,6-dimethoxyphenol and 1 g dibutylamine are heated at 110°, with rapid stirring, for 2 hours. 50 ml of ethanol are added and the mixture cooled to 10° thereby obtaining 27.3 g of 3-(3,5-dimethoxy-4-hydroxybenzyl)-benzothiazole-2-thione (compound No. 8) melting at 141°-142°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05097039
Source datasetuspto-grants-1992_03
ORD IDord-09095e94af8c41e5be70da12db63967a
Source noteuspto-grants-1992_03