反应详情

682 grams Methyl Carbitol (diethylene glycol monomethyl ether, Union Carbide) were azeotropically esterified with 598.9 grams acrylic acid in 272 grams toluene in the presence of 22.8 grams p-toluenesulfonic acid and inhibitors until no more water was collected. Conditions were 95°-98° C., nitrogen sparge in vacuo. On completion, the product was washed and neutralized with sodium carbonate. 1,300 ppm p-methoxyphenol were added and solvent removed at 80° C. at maximum vacuum with an air sparge. Filter aid was added and the product filtered to clarity at 50° C. The final product was a clear, light yellow liquid, viscosity 6 cps with a Gardner 1 color.

1. customwas collected
2. customwere 95°-98° C.
3. customnitrogen sparge in vacuo
4. washOn completion, the product was washed
5. addition1,300 ppm p-methoxyphenol were added
6. customsolvent removed at 80° C. at maximum vacuum with an air
7. customsparge
8. filtrationFilter aid
9. additionwas added
10. filtrationthe product filtered to clarity at 50° C