Yayın: Periferal Fosforlu Ve Naftalenli Gruplar İçeren Porfirazinler
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Kimyagerlik
Chemistry
Chemistry
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Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
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Esnek metiltiyo zincirlerle periferal posizyonlardan bağlanmış sekiz adet naftil birimi içeren yeni bir porfirazin için başlangıç noktası, 1-(klorometil)naftalen ve ditiyomaleonitril disodyum tuzundan elde edilen 1,2-bis(1-naftilmetiltiyo)maleonitril’dir (1). Magnezyumun yönlendirme etkisinden faydanılarak, magnezyum butanolat varlığında 1’in siklotetramerizasyonuyla periferal posizyonlardan bağlanmış sekiz adet naftilmetil grubu içeren sübstitüe mavi-yeşil renkli magnezyum porfirazin (2) sentez edilmiştir. Trifluoroasetik asit gibi kuvvetli bir asitle muamele edilerek metalsiz türevine (3) geçilmiş ve bu ürünün bakır(II) asetat, çinko(II) asetat ve kobalt(II) asetat ile reaksiyona sokulmasıyla metal porfirazinler (4-6) elde edilmiştir (M+2= Cu+2, Zn+2, Co+2). Bu çalışmanın ana hedefini oluşturan trifenilfosfin sübstitüe porfirazinler elde etmek için önce trifenilfosfinin metakrilik asit ve hidrobromik asit ile reaksiyonu sonucu oluşan (2-karboksi-1-metiletil)trifenilfosfonyum bromür’ün (9), oktakis(2-hidroksietiltiyo)porfirazinatomagnezyum’un (8) -OH grupları ile esterleştirme reaksiyonu yapılmıştır. Yeni bileşikler FT-IR, EPR, 1H ve 31P NMR, UV-görünür bölge spektrumlarıyla ve elementel analizle ayrı ayrı karakterize edilmiştir.
The starting point for a novel porphyrazine structure with eight naphthyl units bound to the periphery through flexible methylthio-chains is 1,2-bis(1-naphthylmethylthio)maleonitrile (1) which was obtained from disodium salt of dithiomaleonitrile and 1-(chloromethyl)naphthalene. By the template effect of magnesium, blue-green colored magnesium porphyrazinate (2) substituted with eight naphthylmethyl groups on the peripheral positions has been synthesized by cyclotetramerization of 1 in the presence of magnesium butanolate. The metal-free derivative (3) was obtained by its treatment with trifluoroacetic acid and further reaction of this product with copper(II) acetate, zinc(II) acetate and cobalt(II) acetate led to the metal porphyrazinates (4-6) (M+2= Cu+2, Zn+2, Co+2). In order to obtain triphenylphosphine substituted porphyrazines which is the main goal of this study, (2-carboxy-1-methylethyl) triphenylphosphonium bromide (9) is obtained by the reaction of triphenylphosphine and methacrylic acid with hydrobromic acid. Then, the -OH groups of octakis(2-hydroxyetyhylthio)porphyrazinatomagnesium (8) are reacted with 9 for esterification. The novel compounds were characterized by FT-IR, EPR,1H NMR, 31P NMR, UV-Vis spectral techniques and elemental analysis.
The starting point for a novel porphyrazine structure with eight naphthyl units bound to the periphery through flexible methylthio-chains is 1,2-bis(1-naphthylmethylthio)maleonitrile (1) which was obtained from disodium salt of dithiomaleonitrile and 1-(chloromethyl)naphthalene. By the template effect of magnesium, blue-green colored magnesium porphyrazinate (2) substituted with eight naphthylmethyl groups on the peripheral positions has been synthesized by cyclotetramerization of 1 in the presence of magnesium butanolate. The metal-free derivative (3) was obtained by its treatment with trifluoroacetic acid and further reaction of this product with copper(II) acetate, zinc(II) acetate and cobalt(II) acetate led to the metal porphyrazinates (4-6) (M+2= Cu+2, Zn+2, Co+2). In order to obtain triphenylphosphine substituted porphyrazines which is the main goal of this study, (2-carboxy-1-methylethyl) triphenylphosphonium bromide (9) is obtained by the reaction of triphenylphosphine and methacrylic acid with hydrobromic acid. Then, the -OH groups of octakis(2-hydroxyetyhylthio)porphyrazinatomagnesium (8) are reacted with 9 for esterification. The novel compounds were characterized by FT-IR, EPR,1H NMR, 31P NMR, UV-Vis spectral techniques and elemental analysis.
Tanım
Tez (Doktora) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2004
Thesis (PhD) -- İstanbul Technical University, Institute of Science and Technology, 2004
Thesis (PhD) -- İstanbul Technical University, Institute of Science and Technology, 2004
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İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
Anahtar Kelimeler
Porfirazin, naftalen, EPR, trifenilfosfin, fosfonyum., Porphyrazine, naphthalene, EPR, triphenylphosphine, phosphonium.
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10
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