Sulfuric Acid → HCID 19864978, compound

HRID 1200282Notes

Reaction equation

HRID 1200282 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([CH3:17])([CH3:16])[CH2:9][CH2:10][CH2:11][C:12]([O:14][CH3:15])=[O:13])=[CH:4][C:3]=1[CH3:18].S(=O)(=O)(O)O.[CH3:24][C:25](=[CH2:27])[CH3:26]>C1(C)C=CC=CC=1>[C:25]([C:7]1[CH:6]=[C:5]([C:8]([CH3:17])([CH3:16])[CH2:9][CH2:10][CH2:11][C:12]([O:14][CH3:15])=[O:13])[CH:4]=[C:3]([CH3:18])[C:2]=1[OH:1])([CH3:26])([CH3:24])[CH3:27]

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 8255IsobutyleneHCID 19864939HCID 19864939, compound

Product 1

HCID 19864978HCID 19864978, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

Into 35.0 parts of methyl 5-(4-hydroxy-3-methylphenyl)-5-methyl-hexanoate from Example 9, 2.0 parts of 98% sulphuric acid, and 200 parts of toluene, was passed isobutylene for 2 hours at 75° C. After washing the toluene solution with 10% sodium hydroxide solution and then water, the toluene was stripped off and the residue distilled to give methyl 5-(3-t-butyl-4-hydroxy-5-methylphenyl)-5-methyl-hexanoate b0.3 168°-72° C. with the following percentage composition by weight.

Workup

  1. customfor 2 hours
  2. customat 75° C
  3. washAfter washing the toluene solution with 10% sodium hydroxide solution
  4. distillationthe residue distilled

Sources & evidence

ORD record
ord-b8101482c80746399b92e677a69cd3d9
Source dataset
uspto-grants-1990_02
Patent number
US04904815

Reaction notes

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