Diisopropyl succinate was synthesized from succinic acid and isopropanol with p - methyl benzenesulfonic acid as catalyst.摘要以丁二酸和异丙醇为原料及对甲基苯磺酸为催化剂,催化合成丁二酸二异丙酯.Diisopropyl phosphite was directly synthesized from phosphoru...
Prospects for effecting real political change seemed to have taken a major step backwards.实现真正政治变革的机会似乎变得更加渺茫了。On a typewriter or a keyboard, a control for effecting the space function.打字机或键盘上的一种实现[执行]空格功能[操作]的控制键.Object...