Process for productin of 4,4'-thiobis phenols

Details Process for productin of 4,4'-thiobis phenols Process for productin of 4,4'-thiobis phenols

1993-07-28

1994-06-07

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

568 48, C07C31924, C07C31914

Patent

active

053191447

ABSTRACT:
Thiobisphenols of the formula: ##STR1## wherein X is 1, 2, 3 or 4 and R.sub.1 and R.sub.2 are straight or branch-chained alkyl group of 1 to 10 carbon atoms, which are useful as antiodiants and synergists for antioxidants, are prepared by reaction of a 2,6-dialkylphenol with an excess of sulfur in a solvent comprising a mixture of an alcohol and water wherein the solvent contains from 10 to 50 wt. % of water.

REFERENCES:
patent: 3835196 (1974-09-01), Fujisawa et al.

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