TY - JOUR ID - 167965 TI - Silica-Imidazole Solid Catalyst for N-Glycine Derivatives Synthesis JO - Asian Journal of Green Chemistry JA - AJGC LA - en SN - 2588-5839 AU - Hello, Kasim Mohammed AU - Fahad, Nahla Ghaze AD - Chemistry Department, College of Science, Al-Muthanna University, Iraq Y1 - 2023 PY - 2023 VL - 7 IS - 1 SP - 39 EP - 46 KW - Glycine KW - Schiff base KW - Imidazole KW - Rice Husk Ash KW - Silica DO - 10.22034/ajgc.2023.1.5 N2 - Schiff base was reacted with α-chloroacetic acid to produce N-(α-chlorobenzyl)-N-phenylglycine derivatives (N-Gly) over solid heterogeneous catalyst. Different N-Gly derivatives were synthesized over the catalyst with approximately 90% yield. Both calculated and theoretical elemental analyses of N-Gly derivatives were in agreement with each other. The functional groups of N-Gly derivatives were proved by the FT-IR spectroscopy. The melting points N-Gly derivatives were matched with those in the literature. The catalyst was produced by immobilizing sodium silicate from rice husk with 3–(chloropropyl)triethoxysilane followed by refluxed the product with p-xylyl-di-imidazolium chloride. The results showed that the optimum catalyst conditions were 5 h as reaction time, 0.25 g mass of catalyst, 90 °C as reaction temperature, and toluene as the best solvent. UR - https://www.ajgreenchem.com/article_167965.html L1 - https://www.ajgreenchem.com/article_167965_2b3e0490c49f86b7e63a8fdbc42370a9.pdf ER -