Phase transfer catalysis along with ultrasound technique proved to be useful in various organic heterogeneous reactions and recognized as a viable environmentally friendly. The influence of ultrasonic irradiation associated with a new multi site phase transfer catalyst (MPTC) on the synthesis of 1,3-bis(4-nitro phenoxy)benzene from 1,3-dihydroxy benzene with 1-chloro-4-nitrobenzene (CNB) under heterogeneous solid-liquid condition using sodium hydroxide as a base at 750C has been studied. The higher conversion of 1-chloro-4-nitrobenzene has been achieved by using the synergistic condition of ultrasonic irradiation (40 kHz, 300W) and multi-site phase transfer catalyst in better efficacy. The reaction rate enhance by decrease the volume of water. The apparent the reaction rate was found to be pseudo-first order kinetics. The apparent rate constant was increased linearly with the increase in the concentration of various parameters multi-site phase transfer catalyst, sodium hydroxide ultrasonic effect, stirring speed and temperature from Arrhenius plot the apparent activation energy (Ea) was also calculated.

中文翻译：

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多位相转移催化与超声辐射协同合成1，3-双（4-硝基苯氧基）苯的动力学研究

相转移催化与超声技术一起被证明可用于各种有机多相反应中，并被认为对环境友好。新型多位相转移催化剂（MPTC）的超声辐射对1,3-二羟基苯与1-氯-4-硝基苯（CNB）合成1,3-双（4-硝基苯氧基）苯的影响）在非均质固液条件下，以氢氧化钠为碱，在750℃下进行了研究。通过利用超声辐射（40 kHz，300W）和多位相转移催化剂的协同作用，可以实现更高效率的1-氯-4-硝基苯转化率。通过减少水的量，反应速率得以提高。发现反应速率显然是拟一级动力学。