نتایج جستجو برای: 134 oxadiazoles

تعداد نتایج: 13377  

Background: To provide infertility counseling for diverse religious groups it is important to have a good understanding of how patients

Journal: :Organic & biomolecular chemistry 2015
Laurent Le Corre Lotfi Tak-Tak Arthur Guillard Guillaume Prestat Christine Gravier-Pelletier Patricia Busca

The synthesis of 4-amino-3-cyano-N-arylpyrazoles A based on a Thorpe-Ziegler cyclization as the key step has been achieved using microwave activation. Via a new diversity-oriented synthetic pathway, these highly functionalized building blocks allowed the access to various heteroaromatic scaffolds such as pyrazolo-pyridines B, pyrazolo-pyrimidines C and pyrazolo-oxadiazoles D. Interestingly, the...

2014
Ivelina M. Yonova Charlotte A. Osborne Naomi S. Morrissette Elizabeth R. Jarvo

A mild protocol for the synthesis of diaryl and heteroaryl sulfides is described. In a one-pot procedure, thiols are converted to sulfenyl chlorides and reacted with arylzinc reagents. This method tolerates functional groups including aryl fluorides and chlorides, ketones, as well as N-heterocycles including pyrimidines, imidazoles, tetrazoles, and oxadiazoles. Two compounds synthesized by this...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2012
Maurizio D'Auria Vincenzo Frenna Salvatore Marullo Rocco Racioppi Domenico Spinelli Licia Viggiani

The photochemical version of the Boulton-Katritzky reaction has been studied, examining the behaviour of the arylhydrazones of 3-benzoyl-5-X-1,2,4-oxadiazoles. The effect of several modifications of the substrates structure (the E and/or Z structures of arylhydrazones, the possible presence of substituents in the arylhydrazono moiety, and the nature of substituents at C-5 of the 1,2,4-oxadiazol...

2009
Lu-Na Han Ran-Zhe Lu Min Zhang Hai-bo Wang

In the title compound, C(30)H(32)N(4)O(4)S, the dihedral angles between the central thio-phene ring and the pendant oxadiazole rings are 10.1 (2) and 6.8 (3)°. The dihedral angles between each oxadiazole ring and its adjacent benzene ring are 6.8 (2) and 5.3 (3)°.

2011
B. SENYUK Y.-K. KIM L. TORTORA O. D. LAVRENTOVICH S.-T. SHIN S. V. SHIYANOVSKII

This page lists questions we have about your paper. The numbers displayed at left can be found in the text of the paper for reference. In addition, please review your paper as a whole for correctness. We address the status of oxadiazole mesogens, C7 and C12, reported to show the biaxial nematic phase, by exploring material aspects (chemical stability, surface anchoring, optical and dielectric p...

Journal: :ChemMedChem 2009
Darren W Engers Alice L Rodriguez Richard Williams Alexis S Hammond Daryl Venable Oluwatomi Oluwatola Gary A Sulikowski P Jeffrey Conn Craig W Lindsley

An iterative analogue library synthesis strategy rapidly developed comprehensive SAR for the mGluR5 ago-potentiator ADX-47273. This effort identified key substituents in the 3-position of oxadiazole that engendered either mGluR5 ago-potentiation or pure mGluR5 positive allosteric modulation. The mGluR5 positive allosteric modulators identified possessed the largest fold shifts (up to 27.9-fold)...

2011
Hoong-Kun Fun Madhukar Hemamalini Nithinchandra Balakrishna Kalluraya

In the title compound, C(19)H(16)N(6)O(3)S, the 3,6-dihydro-1,3,4-thia-diazine ring adopts a twist-boat conformation. The dihedral angle between the meth-oxy-substituted benzene ring and the oxadiazole ring is 71.91 (7)°. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers via pairs of inter-molecular N-H⋯N hydrogen bonds, generating R(2) (2)(8) ring motifs. ...

Journal: :Revista Virtual de Química 2015

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