Özgün Karbonilli Bileşiklerin Sentezi
Yükleniyor...
Dosyalar
Tarih
item.page.authors
Süreli Yayın başlığı
Süreli Yayın ISSN
Cilt Başlığı
Yayınevi
Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
Özet
Bu tez çalışmasında 1-asetoksi-1,3-bütadien bileşiğinin çeşitli diazo bileşikleri ile katalitik ortamdaki reaksiyonları incelenmiştir. İlk olarak 1-asetoksi-1,3-bütadien bileşiğinin dimetil diazomalonat ile bakır(II) asetilasetonat katalizörlüğünde reaksiyonu gerçekleştirilmiştir. Siklopropan ürünü ((E/Z)-dimetil 2-(2-asetoksivinil)siklopropan-1,1-dikarboksilat) bu reaksiyonda tek ürün olarak ele geçmiştir. Aynı reaksiyon, bu kez etil diazoasetat ile yine bakır(II) asetilasetonat katalizörlüğünde tekrarlanmış ve reaksiyondan (E/Z)-etil 2-(2-asetoksivinil)siklopropankarboksilat bileşiğinin yanında dietil 3-asetoksisikloheks-4-en-1,2-dikarboksilat bileşiği de elde edilmiştir. Reaksiyonlarda diazo bileşiği değiştirilerek donor-akseptör özellikli 1-diazo-1-fenilpropan-2-on ve (E)-metil 2-diazo-4-fenilbut-3-enoat bileşikleri de kullanılmıştır. İlk olarak 1-asetoksi-1,3-bütadien ile 1-diazo-1-fenilpropan-2-on bileşiklerinin Rh(II) asetat katalizörlüğünde reaksiyonu yapılmıştır. Tepkimeden (E/Z)-2-(2-asetil-2-fenilsiklopropil)vinil asetat ile karben dimeri ve trimeri ele geçmiştir. (E)-metil 2-diazo-4-fenilbut-3-enoat bileşiği ile aynı koşullarda gerçekleştirilen reaksiyonda ise [4+3] siklokatılma reaksiyonu üzerinden metil 4-asetoksi-3-fenilsiklohepta-1,5-dienekarboksilat tek ürün olarak elde edilmiştir.
In this thesis, we studied at reactions of 1-acetoxy-1,3-butadiene and various diazo compounds in the presence of catalyst. In the reaction of 1-acetoxy-1,3-butadiene with dimethyl diazomalonate in the presence of copper(II) acetylacetonate a cyclopropane compound ((E/Z)-dimethyl 2-(2-acetoxyvinyl)cyclopropane-1,1-dicarboxylate) was obtained as a sole product. Similar reaction was carried out using ethyl diazoacetate as a diazo compound and (E/Z)-ethyl 2-(2-acetoxyvinyl)cyclopropanecarboxylate and diethyl 3-acetoxycyclohex-4-ene-1,2-dicarboxylate were obtained respectively. 1-Diazo-1-phenylpropane-2-one and (E)-methyl 2-diazo-4-phenylbut-3-enoate were used as donor-acceptor in these reactions. Initially the reaction of 1-acetoxy-1,3-butadiene with 1-diazo-1-phenylpropane-2-one in the presence of Rh(II) acetate were performed and (E/Z)-2-(2-acetyl-2-phenylcyclopropyl)vinyl acetate, carbene dimer, and trimer were obtained. Methyl 4-acetoxy-3-phenylcyclohepta-1,5-dienecarboxylate was isolated as a sole product over [4+3] cycloaddition using (E)-methyl 2-diazo-4-phenylbut-3-enoate.
In this thesis, we studied at reactions of 1-acetoxy-1,3-butadiene and various diazo compounds in the presence of catalyst. In the reaction of 1-acetoxy-1,3-butadiene with dimethyl diazomalonate in the presence of copper(II) acetylacetonate a cyclopropane compound ((E/Z)-dimethyl 2-(2-acetoxyvinyl)cyclopropane-1,1-dicarboxylate) was obtained as a sole product. Similar reaction was carried out using ethyl diazoacetate as a diazo compound and (E/Z)-ethyl 2-(2-acetoxyvinyl)cyclopropanecarboxylate and diethyl 3-acetoxycyclohex-4-ene-1,2-dicarboxylate were obtained respectively. 1-Diazo-1-phenylpropane-2-one and (E)-methyl 2-diazo-4-phenylbut-3-enoate were used as donor-acceptor in these reactions. Initially the reaction of 1-acetoxy-1,3-butadiene with 1-diazo-1-phenylpropane-2-one in the presence of Rh(II) acetate were performed and (E/Z)-2-(2-acetyl-2-phenylcyclopropyl)vinyl acetate, carbene dimer, and trimer were obtained. Methyl 4-acetoxy-3-phenylcyclohepta-1,5-dienecarboxylate was isolated as a sole product over [4+3] cycloaddition using (E)-methyl 2-diazo-4-phenylbut-3-enoate.
Açıklama
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2013
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2013
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2013
Konusu
siklopropan, diazo bileşiği, siklokatılma, cyclopropane, diazo compounds, cycloaddition
