Phthalic Anhydride → HCID 86754841, compound

HRID 1604730Notes

Reaction equation

HRID 1604730 reaction equation
[C:1]1(=[O:11])[O:6][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12.[CH3:12][CH:13]([CH:15]([OH:21])[C:16]([CH2:19][OH:20])([CH3:18])[CH3:17])[CH3:14]>C1(C)C=CC=CC=1>[C:1]([OH:6])(=[O:11])[C:2]1[C:3](=[CH:7][CH:8]=[CH:9][CH:10]=1)[C:4]([OH:20])=[O:5].[CH3:17][C:16]([CH3:18])([CH:15]([OH:21])[CH:13]([CH3:14])[CH3:12])[CH2:19][OH:20]

Participants

4

Reactant 2

HCID 6811Phthalic AnhydrideHCID 89462,2,4-Trimethyl-1,3-pentanediol

Product 1

HCID 86754841HCID 86754841, compoundYield 103%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
80 °C

Procedure

A solution of 4.98 g (0.033 mole) of phthalic anhydride and 5.42 g (0.037 mole) of TMPD in 40 mL of toluene was stirred and heated at 80° C. for approximately 30 hr. The solvent was evaporated and the crystalline residue washed with cold toluene and dried to give 5.95 g of 2,2,4-Trimethyl-1,3-pentanediol monophthalate. Crude 2,2,4-Trimethyl-1,3-pentanediol monophthalate (1.00 g) was recrystallized from 5 mL of toluene and washed to give 0.95 g of pure 1-(2,2,4-Trimethyl-1,3-pentanediol) monophthalate, m. p. (differential scanning calorimetry) 127.0° C.

Workup

  1. customThe solvent was evaporated
  2. washthe crystalline residue washed with cold toluene
  3. customdried

Sources & evidence

ORD record
ord-e89e6e180b334c29ac12b44bc53a70ae
Source dataset
uspto-grants-1999_11
Patent number
US05994564

Reaction notes

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