Formaldehyde → Naphthalene HCHO Naphthol

HRID 258056

Reaktionsgleichung

Reaktionsgleichung von HRID 258056
C[C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[CH:5]=[CH:4][CH:3]=1.C=[O:13].S(=O)(=O)(O)O.[CH:19]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH:22]=[CH:21][C:20]=1[OH:29]>C(O)(=O)C>[CH:10]1[C:11]2[C:6](=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH:7]=[CH:8][CH:9]=1.[CH2:20]=[O:29].[CH:20]1[CH:21]=[CH:22][C:23]2[C:28](=[CH:27][CH:26]=[CH:25][C:24]=2[OH:13])[CH:19]=1

Komponenten

6

Edukt 4

HCID 712FormaldehydeHCID 1118Sulfuric AcidHCID 70021-MethylnaphthaleneHCID 86632-Naphthol

Produkt 1

HCID 86747390Naphthalene HCHO Naphthol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel

Versuchsvorschrift

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.

Aufarbeitung

  1. temperatureThe reaction mass was heated
  2. temperatureunder reflux an additional 5 hours

Quellen und Nachweise

ORD-Eintrag
ord-623d996bedc541b7b8a54c4528282e95
Quelldatensatz
uspto-grants-1993_11
Patentnummer
US05264500

Verknüpfte Notizen

Wird geladen…