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CO 2 capture greatly helps with greenhouse gas mitigation. Chemical and physical absorption can control CO 2 emission, but these methods are costly. To reduce the cost, an efficient solvent mixture of tetramethylammonium hydroxide (TAMH), tetramethylene sulfone (TMS), and ethylene glycol (EG) is assessed. Gas−liquid equilibrium, reaction kinetics, and mass transfer models are developed and validated by experiments. Henry's constant, reaction kinetics, and mass transfer coefficients between CO 2 and TAMH-TMS-EG are identified. CO 2 loading and mass transfer coefficient are, respectively, obtained as 0.55 mol/molTAMH and 4.02kmol/m 2 /s/kPa, which are on average 25% and 34% higher than the typical MEA process. The theoretical energy consumption amount for desorption of TAMH-TMS-EG-CO 2 solutions is identified as 1.11 GJ/t to 1.34GJ/t. Minimum mass transfer resistance is determined at 40% to 80% TMS fraction. A temperature bulge shift and improvement in the interface characteristics enhance mass transfer due to uniform temperature field and good gas and liquid countercurrent contact.

The Cu(II)‐catalyzed one‐pot, three‐component cyclocondensation of isatoic anhydride, aromatic aldehydes, and ammonium salt or primary amines affords dihydroquinazolinone derivatives in excellent yields.

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