3a-Methyl-7,7a-dihydroisobenzofuran-1,3(3aH,6H)-dione

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same type of separable flask as used in Example 29 was charged with 118g (1 mol) of 1,6-hexanediol and 332g (2 mols) of methyltetrahydrophthalic anhydride. Addition reaction was carried out 2 hours at 140° to 170° C, providing 442g of 2:1 adduct of methyltetrahydrophthalic acid-1,6-hexanediol having an acid value of 238. The same type of separable flask as used in Example 29 Addition reaction

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 1-liter separable flask fitted with a stirrer, thermometer and condenser provided with a calcium chloride desiccator was charged with 90.1g (1 mol) of 1,4-butanediol and 332g (2 mols) of methyltetrahydrophthalic anhydride. Reaction was conducted 2 hours at 160° to 180° C, providing 420g of 2:1 adduct of methyltetrahydrophthalic acid 1,4-butanediol having an acid value of 259.3. A 1-liter separable flask fitted with a stirrer thermometer and condenser provided with a calcium chloride desiccator Reaction

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 1-liter separable flask fitted with a stirrer, thermometer and condenser provided with a calcium chloride desiccator was charged with 90.1g (1 mol) of 1,4-butanediol and 332g (2 mols) of methyltetrahydrophthalic anhydride. Reaction was conducted 2 hours at 160° to 180° C, providing 420g of 2:1 adduct of methyltetrahydrophthalic acid 1,4-butanediol having an acid value of 259.3. A 1-liter separable flask fitted with a stirrer thermometer and condenser provided with a calcium chloride desiccator Reaction

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same type of separable flask as used in Example 29 was charged with 118g (1 mol) of 1,6-hexanediol and 332g (2 mols) of methyltetrahydrophthalic anhydride. Addition reaction was carried out 2 hours at 140° to 170° C, providing 442g of 2:1 adduct of methyltetrahydrophthalic acid-1,6-hexanediol having an acid value of 238. The same type of separable flask as used in Example 29 Addition reaction

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 1-liter separable flask fitted with a stirrer, thermometer and condenser provided with a calcium chloride desiccator was charged with 90.1g (1 mol) of 1,4-butanediol and 332g (2 mols) of methyltetrahydrophthalic anhydride. Reaction was conducted 2 hours at 160° to 180° C, providing 420g of 2:1 adduct of methyltetrahydrophthalic acid 1,4-butanediol having an acid value of 259.3. A 1-liter separable flask fitted with a stirrer thermometer and condenser provided with a calcium chloride desiccator Reaction