2,4-Dihydroxy-4'-methylbenzophenon Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
preparation by reaction of p-toluic acid (4-methyl-benzoic acid) with resorcinol,in the presence of zinc chloride for 20 min at 165° (25%) (Nencki reaction) ? ;in the presence of Zeolite-H-beta in refluxing 4-chlorotoluene (162°) for ? 1618 h (70%) ;in the presence of boron trifluoride in tetrachloroethane on a steam bath for ? 4 h.
2,4-Dihydroxy-4'-methylbenzophenon Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte