ABSTRAK
Senyawa turunan pirimidin telah berhasil disintesis dengan mereaksikan benzaldehida,etil asetoasetat, dan urea melalui reaksi kondensasi Biginelli. Produk yang terbentukdikarakterisasi menggunakan alat FTIR, UV-Vis, dan GC-MS. Pada sintesis senyawaini digunakan nanokatalis CuFe2O4 yang berhasil disintesis dengan metode kopresipitasidan dikonfirmasi dengan FTIR, XRD, TEM dan PSA. Berdasarkan optimasi (senyawa1) dengan nama IUPAC 5-(ethoxy carbonyl)-4-(phenyl)-6-methyl-3,4-dihydropyrimidin2(1-)onediperoleh kondisi optimum dengan waktu 4 jam reaksi, suhu 70°C, dan 7,5%berat katalis dengan yield sebesar 71,57%, untuk (senyawa 2) 5-(ethoxy carbonyl)-4-(phenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)thione diperoleh kondisi optimum selamawaktu 4 jam reaksi, suhu 50°C, dan 7,5% berat katalis dihasilkan yield sebesar 76,84%sedangkan untuk (senyawa 3) pada waktu 4 jam reaksi, suhu 70°C, dan 7,5% beratkatalis dengan yield sebesar 73,69% belum berhasil membentuk senyawa5-(ethoxy carbonyl)-4-(phenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)imine dari reaktanbenzaldehida, etil asetoasetat dan guanidin.
ABSTRACT
Pyrimidine derivatives have been synthesized by reacting benzaldehyde, ethylacetoacetate, urea through Biginelli condensation reaction using CuFe2O4 nanocatalyst .Characterization of the three of product were performed by using FTIR, UV-Vis andGC-MS. In the synthesis of these compounds using CuFe2O4 nanocatalyst weresuccessfully synthesized by coprecipitation method and characterized by FTIR, XRD,PSA, TEM. Optimum conditions for producing (compound 1) 5-(ethoxy carbonyl)-4-(phenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)one were 4 hours reaction, temperature70° C and 7.5% weight catalyst with yield 71.57% , (compound 2) 5-(ethoxy carbonyl)-4-(phenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)thione was at 4 hours reaction, 50° Cand 7.5% weight catalyst with yield 76.84% and compound 3 were 4 hours reaction,temperature 70° C and 7.5% weight catalyst with yield 73.69% has not succeeded informing a 5-(ethoxy carbonyl)-4-(phenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)imine. |
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