Ammonium thiocyanate was prepared in 2 steps from aqueous ammonia and carbon disulfied by phase transfer catalysis in yield of 72 7%, when catalysts consisted of OP 4 and OP 21 in mole ratio of 4∶6. The effects of re...Ammonium thiocyanate was prepared in 2 steps from aqueous ammonia and carbon disulfied by phase transfer catalysis in yield of 72 7%, when catalysts consisted of OP 4 and OP 21 in mole ratio of 4∶6. The effects of reaction temperature, time, mole ratio of OP 4 to OP 21 and conparison with other catalysts on the reaction were descurved.展开更多
Copper-tetra-4-(butyloxycarbonyl) phthalocyanine, copper-tetra-4-(octyloxycarbonyl) phthalocyanine and copper-tetra-4-(dodecoxycarboxyl) phthalocyanine were synthesized by the phase transfer catalysis reaction. The re...Copper-tetra-4-(butyloxycarbonyl) phthalocyanine, copper-tetra-4-(octyloxycarbonyl) phthalocyanine and copper-tetra-4-(dodecoxycarboxyl) phthalocyanine were synthesized by the phase transfer catalysis reaction. The reaction has several advantages in comparison with the previous carboxyl-esterified method, such as the milder conditions, the shorter reaction time(3—6 h), the higher yield(>95%), and so on. Because of the difference in the substituent group length of these compounds, the morphology and the congregation of the molecules in their casting films is different, leading to the different photoconductivities of them.展开更多
文章研究了合成扁桃酸的工艺,并使用SPSS软件对扁桃酸的合成反应选择最优反应条件;以苯甲醛和氯仿为原料,以叔胺(三乙胺)作为相转移催化剂,采用了与传统制备方法不同的相转移催化二氯卡宾法来制备扁桃酸,并对反应温度、反应时间和催化...文章研究了合成扁桃酸的工艺,并使用SPSS软件对扁桃酸的合成反应选择最优反应条件;以苯甲醛和氯仿为原料,以叔胺(三乙胺)作为相转移催化剂,采用了与传统制备方法不同的相转移催化二氯卡宾法来制备扁桃酸,并对反应温度、反应时间和催化剂用量对实验的影响进行探讨。结果表明,以三乙胺为催化剂,反应温度为60℃,反应时间为7 h,催化剂用量为5 m L时制备扁桃酸的效果较好。文章采用SPSS软件进行正交设计选择最佳条件对结果进行分析,在以后选择反应条件时,可以推广使用SPSS软件,处理数据会更加简单方便。展开更多
文摘Ammonium thiocyanate was prepared in 2 steps from aqueous ammonia and carbon disulfied by phase transfer catalysis in yield of 72 7%, when catalysts consisted of OP 4 and OP 21 in mole ratio of 4∶6. The effects of reaction temperature, time, mole ratio of OP 4 to OP 21 and conparison with other catalysts on the reaction were descurved.
文摘Copper-tetra-4-(butyloxycarbonyl) phthalocyanine, copper-tetra-4-(octyloxycarbonyl) phthalocyanine and copper-tetra-4-(dodecoxycarboxyl) phthalocyanine were synthesized by the phase transfer catalysis reaction. The reaction has several advantages in comparison with the previous carboxyl-esterified method, such as the milder conditions, the shorter reaction time(3—6 h), the higher yield(>95%), and so on. Because of the difference in the substituent group length of these compounds, the morphology and the congregation of the molecules in their casting films is different, leading to the different photoconductivities of them.
文摘文章研究了合成扁桃酸的工艺,并使用SPSS软件对扁桃酸的合成反应选择最优反应条件;以苯甲醛和氯仿为原料,以叔胺(三乙胺)作为相转移催化剂,采用了与传统制备方法不同的相转移催化二氯卡宾法来制备扁桃酸,并对反应温度、反应时间和催化剂用量对实验的影响进行探讨。结果表明,以三乙胺为催化剂,反应温度为60℃,反应时间为7 h,催化剂用量为5 m L时制备扁桃酸的效果较好。文章采用SPSS软件进行正交设计选择最佳条件对结果进行分析,在以后选择反应条件时,可以推广使用SPSS软件,处理数据会更加简单方便。
