Oxygen → Tetrahydrophthalic anhydride
반응식
[C:1]1(=[O:7])[O:6][C:4](=[O:5])[CH:3]=[CH:2]1.[C:8]([C:12]1C=C(O)C(=C[CH:18]=1)O)(C)(C)[CH3:9].S(CCC(OCCCCCCCCCCCC)=O)CCC(OCCCCCCCCCCCC)=O.O=O>>[CH2:9]1[CH:2]2[C:1]([O:6][C:4](=[O:5])[CH:3]2[CH2:18][CH:12]=[CH:8]1)=[O:7]참가 물질
5
실험 절차
3Me--THPA was produced by a combination of replacement and liquid phase aeration method. Thus, the reaction procedure of Example 8 was repeated except that the respective amounts of maleic anhydride, radical polymerization inhibitor p-tert-butylcatechol and auxiliary polymerization inhibitor dilauryl thiodipropionate were melted at 60° C. and the internal atmosphere was replaced with nitrogen gas containing 1 volume % of oxygen. Then, the same oxygen-containing nitrogen gas was introduced into the liquid phase at a rate of 5 ml/min. The procedure gave 164 g of 3Me--THPA. The investigation revealed no gels in the product.