La-Mg mixed oxide as a highly basic water resistant catalyst for utilization of CO2 in the synthesis of quinazoline-2,4(1H, 3H)-dione

Rasal Kalidas B.; Yadav Ganapati D.

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La-Mg mixed oxide as a highly basic water resistant catalyst for utilization of CO2 in the synthesis of quinazoline-2,4(1H, 3H)-dione

机译：La-Mg混合氧化物作为用于在喹唑啉-2,4（1H，3H）的合成中使用CO 2的高碱性防水催化剂 - 2,4（1H，3H） - 二硫醚

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The synthesis of quinazoline-2,4(1H, 3H)-dione was done by direct utilization of CO2 in the cyclization of 2-aminobenzonitrile (2-ABN) using lanthanum magnesia mixed oxide (La-Mg MO) as a strong basic catalyst under mild reaction conditions in water. It gave a conversion of similar to 92% with 100% selectivity at 140 degrees C in 14 h. La-Mg MO was prepared by hydrothermal method using urea as homogeneous precipitating agent. The catalyst was characterized by different analytical techniques like BET, XRD, FT-IR, SEM, and TGA, and the basicity by CO2-TPD and acidity by NH3 TPD. Various reaction parameters were studied to predict the reaction mechanism and kinetics. The reaction follows the Langmuir-Hinshelwood-Hougen-Watson (LHHW) type kinetics model with an apparent activation energy of 23.3 kcal mol(-1). The catalyst was recycled three times with an insignificant change in activity. The overall process is clean and green.

机译：通过使用镧使用镧系元素混合氧化物（La-Mg Mo）作为强碱催化剂，通过直接利用CO 2来进行喹唑啉-2,4（1H，3H）-DIONE的合成。在水中的温和反应条件下。它在140℃下，在140℃下的100％选择性得到类似于92％的转化率。通过使用尿素作为均匀沉淀剂的水热法制备La-Mg Mo。催化剂的特征在于BET，XRD，FT-IR，SEM和TGA等不同的分析技术，以及NH 3 TPD的CO2-TPD和酸度的碱度。研究了各种反应参数以预测反应机制和动力学。该反应遵循Langmuir-Hinshelwood-Hougen-Watson（LHHW）型动力学模型，表观活化能量为23.3千卡摩尔（-1）。催化剂再循环三次，活性微不足道。整体过程是干净和绿色的。

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《RSC Advances》 |2016年第112期|共11页
作者
Rasal Kalidas B.; Yadav Ganapati D.;
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Inst Chem Technol Dept Chem Engn Nathalal Parekh Marg Bombay 400019 Maharashtra India;

Inst Chem Technol Dept Chem Engn Nathalal Parekh Marg Bombay 400019 Maharashtra India;

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1. La-Mg mixed oxide as a highly basic water resistant catalyst for utilization of CO2 in the synthesis of quinazoline-2,4(1H, 3H)-dione [J] . Rasal Kalidas B., Yadav Ganapati D. RSC Advances . 2016,第112期

机译：La-Mg混合氧化物作为用于在喹唑啉-2,4（1H，3H）的合成中使用CO 2的高碱性防水催化剂 - 2,4（1H，3H） - 二硫醚
2. Highly Efficient Synthesis of Quinazoline-2,4(1H,3H)-diones from CO2 by Hydroxyl Functionalized Aprotic Ionic Liquids [J] . Shi Guiling, Chen Kaihong, Wang Yongtao, ACS Sustainable Chemistry & Engineering . 2018,第5期

机译：高效合成喹唑啉-2,4（1H，3H） - 通过羟基官能化非质子离子液体的CO2
3. Amino-functionalized carbon nanofibres as an efficient metal free catalyst for the synthesis of quinazoline-2,4(1H,3H)-diones from CO2 and 2-aminobenzonitriles [J] . Kumar Subodh, Verma Sanny, Shawat Efrat, RSC Advances . 2015,第31期

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5. Synthesis, Oxidation and Photophysics of Perfluoroborated Tetrakis(pyrophosphito)diplatinate (II) and Density Functional Theory (DFT) Study of Electrochemical CO2 Reduction by Mn Catalysts [D] . Lam, Yan Choi 2015

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6. 1-{[(2,3-Dihydro-1H-inden-2-yl)oxy]methyl}quinazoline-2,4(1H,3H)-dione [O] . Nasser R. El-Brollosy, Necmi Dege, Güneş Demirtaş, 2015

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7. Alcohol amine-catalyzed CO2 conversion for the synthesis of quinazoline-2,4-(1H,3H)-dione in water [O] . Zhi-Zheng Sheng, Min-Min Huang, Teng Xue, 2020

机译：醇胺催化的CO 2转化用于合成喹唑啉-2,4-（1H，3H） - 二氧化乙醚
8. Initial Submission: Acute Oral Toxicity of 1,3,5-triazine-2,4(1h,3h)-dione, 3-cyclohexyl-6-(dimethylamino)-1-methyl in Rats with Cover Letter dated 082092. [R] . 1992

机译：初始提交：1,3,5-三嗪-2,4（1h，3h） - 二酮，3-环己基-6-（二甲基氨基）-1-甲基在大鼠中的急性口服毒性，具有日期为082092的求职信。

La-Mg mixed oxide as a highly basic water resistant catalyst for utilization of CO2 in the synthesis of quinazoline-2,4(1H, 3H)-dione

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