C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/615.6, 260/6
C07C 319/06 (2006.01) B01J 23/88 (2006.01) C07C 319/14 (2006.01) C07C 323/20 (2006.01) C07B 61/00 (2006.01)
Patent
CA 1339222
This invention relates to an improvement in a process for making 2,6-di-tertiarybutyl-4-mercaptophenol and 4,4-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol) which comprises reduction of bis(3,5-di-tertiarybutyl-4- hydroxyphenol)polysulfide with hydrogen gas in the presence of a catalytic amount of cobalt-molybdenum catalyst. M01255
556531
Bargeron Kim G.
Laskovics F. Mark
Merrell Dow Pharmaceuticals Inc.
Osler Hoskin & Harcourt Llp
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