| 摘要 |
<p>4-Isopropoxy-4’-hydroxydiphenyl sulfone can be produced by reacting 4,4’-dihydroxydiphenyl sulfone which has either a content of 4-phenoxy-4’-hydroxydiphenyl sulfone as impurity of 0.1 % or below or a Hasen value of melt color ranging from 200 to 2000 with an isopropyl halide.</p> |
