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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 258056Generated: October 26, 2026

Formaldehyde → Naphthalene HCHO Naphthol

https://huagongshe.com/reaction/258056

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantSulfuric AcidHCID 1118—
Reactant1-MethylnaphthaleneHCID 7002—
Reactant2-NaphtholHCID 8663—
SolventAcetic AcidHCID 176—
ProductNaphthalene HCHO NaphtholHCID 86747390—

Reaction Steps

In a procedure analogous to that described in Example 1, 1-methylnaphthalene (142 g, 1 mol) was condensed with formaldehyde (170 mL, 2.25 mol) in acetic acid solvent (175 mL) using sulfuric acid (25 mL) catalysis. After reacting for 24 hours 2-naphthol (143 g, 1 mol) was added over 7 minutes. The reaction mass was heated under reflux an additional 5 hours and worked up as in Example 1. The results are shown in Table A.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05264500
Source datasetuspto-grants-1993_11
ORD IDord-623d996bedc541b7b8a54c4528282e95
Source noteuspto-grants-1993_11