Výsledky vyhledávání - "Yunus Akçamur"

Preparation and characterization of novel pyrrol-3-ones attached to α/β-amino acids, esters and amides

Autor: Yunus Akçamur, Şevket Hakan Üngören, Mustafa Saçmacı

Publikováno v: Amino Acids. 31:397-401

Various alpha/beta amino acid derivatives 5 were attached to compounds 3 to yield 2,3-dihydro-1H-pyrrol-3-ones amino acids derivatives 6. This rare heterocyclic amino acid skeleton including the pyrrolo[1,2-b][1,3]oxazol moiety was also successfully

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58ac0123ab8b1db5cb54a596f01eae03
https://doi.org/10.1007/s00726-006-0340-z

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2,4,5-Substituted furan-3(2H)-ones: Synthesis, reactions with amino acid and hydrazine derivatives

Autor: Yunus Akçamur, Dinçer Ülkü, Şevket Hakan Üngören, Mustafa Saçmacı, Cengiz Arıcı

Publikováno v: Heteroatom Chemistry. 16:235-241

Furan-3(2H)-ones (3) were obtained from some 2,3-dihydro-furan-2,3-diones with a few Wittig reagents (2). The compounds of 3 with glycin and hydrazines (4a,b) produced 2,3-dihydro-1H-pyrrol-3-ones (5a–d). All the reaction mechanisms were discussed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a8771c9c76e2410aa0a8249aff60910
https://doi.org/10.1002/hc.20115

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New Poly(Methacrylate)s Containing Benzylpiperazine and Methylpiperidine Moieties

Autor: Yunus Akçamur, Cengiz Soykan, Ibrahim Erol, Hasan Türkmen

Publikováno v: Journal of Polymer Research. 11:181-187

The synthesis of two new methacrylate esters containing 2-(4-benzyl piperazin-1-yl)-2-oksoethyl and 2-(4-methylpiperidin-1-yl)-2-oksoethyl group are described. The monomers produced from the reaction of corresponding 4-methylpiperidinechloroacetamide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a149cbc23b09ff77d90c4b6609ad746
https://doi.org/10.1023/b:jpol.0000043400.92054.92

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Structure and characterization of methyl (±)-1-(2-aminophenyl)-2-hydroxy-4-(4-methoxybenzoyl)-5-(4-methoxyphenyl)-3-oxo-2,3-dihydro-1H-pyrrole-2-acetate

Autor: Yunus Akçamur, Dinçer Ülkü, Mustafa Saçmacı, Ş. Hakan Üngören, Cengiz Arıcı

Publikováno v: Zeitschrift für Kristallographie - Crystalline Materials. 219:554-557

The stoichiometry of 1 was derived from the results of elemental analysis, IR, 1H, 13C-NMR, UV-Vis and mass spectroscopic techniques. The structure derived from physico-chemical methods is consistent with that of the X-ray diffraction. The compound c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6446f16f024ea689b0a97e34b3bb4ae0
https://doi.org/10.1524/zkri.219.9.554.44037

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Synthesis of new 2,3-dihydrofuran-3-one derivative and its reactions with some primary amines

Autor: C. Arici, Mustafa Saçmacı, D. Uelkue, Sevket Hakan Uengoeren, Yunus Akçamur

Publikováno v: Journal of Heterocyclic Chemistry. 41:151-155

The Wittig reaction of 2,3-dihydro-4-(4-methoxybenzoyl)-5-(4-methoxyphenyl)-furan-2,3-dione (1) with methyl (triphenylphosphoranylidene)acetate (2) stereo- and regioselectively afforded methyl (Z)-[2,3-dihydro-4-(4-methoxybenzoyl)-5-(4-methoxyphenyl)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13ec41f314034a6eeaffca445fe8cf53
https://doi.org/10.1002/jhet.5570410203

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4,7a-Bis(4-methoxyphenyl)-1,3,7-tris(4-methylphenyl)-2,3,5,6,7,7a-hexahydro-1H-pyrrolo[2,3-d]pyrimidine-2,5,6-trione

Autor: Harry Adams, Samuel M. Hawxwell, Mustafa Saçmaci, Şevket Hakan Üngoren, Yunus Akçamur, Recep Şahıngöz

Publikováno v: Acta Crystallographica Section E Structure Reports Online. 61:o3953-o3955

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48dcf4024830f1f399aa63710cdee05b
https://doi.org/10.1107/s1600536805035191

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4-Benzoyl-1,5-diphenyl-1H-pyrazole-3-carboxylic acid methanol solvate

Autor: İsmail Yıldırım, Omer Andac, Yunus Akçamur, Muharrem Dinçer, Namık Özdemir

Publikováno v: Acta Crystallographica Section E Structure Reports Online. 61:o256-o258

Andac, Omer/0000-0003-3641-9690; YILDIRIM, ISMAIL/0000-0001-7986-3236; Ozdemir, Namik/0000-0003-3371-9874 WOS: 000226692400106 In the title compound, C23H16N2O3 . CH4O, the N - N bond distance in the pyrazole ring, which is planar within 0.008 Angstr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87f018250ff06a0c3e76f4263f19f442
https://doi.org/10.1107/s1600536804034348

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Investigation of the electronic structures of 1,4,5-substituted derivatives of 1H-pyrimidin-2-thione

Autor: İsmail Yıldırım, Yahya Guzel, Yunus Akçamur, Emin Saripinar

Publikováno v: Monatshefte für Chemie - Chemical Monthly. 127:505-512

Conformational analyses and quantum chemical calculations were carried out for 1,4,5-substituted derivatives of 1H-pyrimidin-2-thione with the common skeletonI by means of the methods MMP2 and SCF MO LCAO in the CNDO/2 and MNDO approximations. The an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f57728ad709ef24d9b3f81f07ab6bba7
https://doi.org/10.1007/bf00807075

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1-Ethyl-5-(4-methoxybenzoyl)-4-(4-methoxyphenyl)pyrimidine-2(1H)-thione

Autor: Muharrem Dinçer, Yunus Akçamur, Suzan Özçelik, İsmail Yıldırım

Publikováno v: Acta Crystallographica Section E Structure Reports Online. 60:o1123-o1125

YILDIRIM, ISMAIL/0000-0001-7986-3236 WOS: 000222374500060 The title compound, C21H20N2O3S, is a derivative of pyrimidine-2-thione and consists of planar fragments. The molecules are linked by C - H ... O/C - H ... S hydrogen bonds and by pi-pi and C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20872d12ab4c42a37dbe9352cc6cf6a8
https://doi.org/10.1107/s1600536804012413

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4-Acetyl-5-methyl-1-phenyl-1H-pyrazole-3-carboxylic acid

Autor: Ş. Hakan Üngören, Yunus Akçamur, Mustafa Saçmacı, Cengiz Arıcı, Dinçer Ülkü

Publikováno v: Acta Crystallographica Section E Structure Reports Online. 60:o865-o867

In the title compound, C13H12N2O3, the phenyl ring is nearly planar, with a maximum deviation of 0.012 (1) A. The pyrazole ring is planar and forms a 48.45 (5)° dihedral angle with the phenyl ring. There is an intramolecular O—H⋯O hydrogen bond

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c106853af2b4730a23577ad21c2533c7
https://doi.org/10.1107/s1600536804009377

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