Process for preparation of trisubstituted phenols

Details Process for preparation of trisubstituted phenols Process for preparation of trisubstituted phenols

1985-09-16

1986-12-30

Helfin, Bernard

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

Organic compounds

Oxygen containing

568780, 568782, 568784, C07C 3750, C07C 3906, C07C 4101, C07C 43205

Patent

active

046330224

ABSTRACT:
2,6-dialkyl substituted phenols such as 2,6-ditertiary butylphenol are reacted with formaldehyde in methyl alcohol in the presence of an inert gas and a tertiary amine catalyst to produce a bis(3,5-di-t-butyl-4-hydroxybenzyl)ether; and the bis ether subjected to hydrogenolysis in the presence of a catalyst, a solvent and an amine to prepare a trisubstituted phenol such as 2,6-di-t-butyl-4-methyl-phenol.

REFERENCES:
patent: 2838571 (1958-06-01), Filbey
patent: 2841623 (1958-07-01), Norton et al.
patent: 3006969 (1961-10-01), Koetitz
patent: 4038327 (1977-07-01), Brindell et al.
patent: 4122287 (1978-10-01), Zakharova et al.
Sadykhov et al., Synthesis and Study of Stabilizing Agents with Paired Reactive Sites etc., Chem. Abs. (1978) 89:111083m.
Chem. Abs. (1963) 1402(a).

Affiliated with

Also associated with

Rating

Process for preparation of trisubstituted phenols does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparation of trisubstituted phenols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of trisubstituted phenols will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1548326