Synthesis of azone was carried out from azacycloheptan-2-one and 1-bromododecane using KOH as condensationagent and PEG-400 as phase transfer catalytic agent.
A called "178" brightening agent for alkaline zincate bath was prepared by condensation, quaternization.
采用缩合、季碱化及酯化反应研制了一种“178”碱性锌酸盐镀锌光亮剂。
3
The condensation two-component RTV-2 silicone rubber was prepared by taking 107 silicone rubber as the main raw material, TEOS as the cross-linking agent, and organic tin as catalyst.