Patent · US Expired

Process for the production of hydroxybenzyl alcohols

US4205188A · kind A · utility

5Cited by
2References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 8, 1978
Grant dateMay 27, 1980
Priority date
Expiry dateSep 8, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C37/72
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A process is provided for the production of hydroxybenzyl alcohols, comprising condensing phenol with formaldehyde in an alkaline solution to form a mixture of ortho- and para-hydroxymethyl phenols, and solvent extracting unreacted phenol from the resulting alkaline hydroxybenzyl alcohol condensate solution. The phenol-reduced hydroxybenzyl alcohol condensate solution is particularly suited for treatment with excess caustic and subsequent oxidation of the resulting aqueous solution of ortho- and para-hydroxybenzyl alcohols-sodium salt to yield the corresponding ortho- and para-hydroxybenzaldehydes-sodium salt.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.