Secondly diisothiocyanates were synthesized by the phase transfer reaction of bischloroformate and potassium thiocyanate;
然后将双氯甲酸酯与硫氰酸钾在相转移催化剂的催化下反应生成二异硫氰酸酯；
The catalyst has high activity, selectivity and the characteristic of reaction controlled phase transfer catalyst.
该催化剂具有高活性、高选择性，且具有反应控制相转移催化剂的特性。
The results show that increasing reaction temperature, using acetone as cosolvent or sodium dodecyl sulfate as phase-transfer reagent can accelerate the reaction.
结果表明，升高反应温度、以丙酮为共溶剂或以十二烷基硫酸钠作相转移剂均可使反应速度加快。
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