Results 121 to 130 of about 1,413 (178)

Poly‐1,3,4‐oxadiazoles. III. Alicyclic poly‐1,3,4‐oxadiazoles

Die Makromolekulare Chemie, 1966
AbstractSome alicyclic poly‐1,3,4‐oxadiazoles were prepared from cycloalkanedicarboxylic dihydrazides or from cycloalkanedicarboxylic acids and hydrazine sulfate by solution polycondensation in polyphosphoric acid. These polymers were characterized by high melting temperature.
Yoshio Iwakura, Keikichi Uno, Shigeyoshi Hara   +2 more
openaire   +1 more source

A Derivative of 1,3,4-Oxadiazole

Acta Crystallographica Section C Crystal Structure Communications, 1995
The molecules of title compound, 2-(4-chloroanilino)-5-(4-pyridyl)-1,3,4-oxadiazole, C 13 H 9 ClN 4 O, are nearly planar with a maximum deviation of 0.094 (2) A from the plane. Intermolecular N(1)-H...N(4') hydrogen bonds link the molecules into chains [N(1)...N(4')= 2.902 (3) A, N(1)-H...N(4')=178 (2)°].
X. Wang, W. Wang, H. X. Liu, M. Y. Tan, M. Li   +4 more
openaire   +1 more source

Photophysics of aryl substituted 1,3,4-oxadiazoles: The triplet state of 2.5-diphenyl-1,3,4-oxadiazole

Chemical Physics Letters, 1983
no ...
Rulliere, C., Roberge, P. C.
openaire   +2 more sources

Photophysics of Fluorene Copolymers Containing 1,3,4-Oxadiazole or 1,3,4-Oxadiazole and Carbazole Units

The Journal of Physical Chemistry C, 2010
The photophysical properties of a series of 9,9′-dioctylfluorene copolymers containing 1,3,4-oxadiazole units (PF1Ox, PF2Ox, PF3Ox, and PF4Ox) as well as a copolymer containing 9,9-dioctylfluorene, 1,3,4-oxadiazole, and N-octylcarbazole (PFOxCz) have been characterized by fluorescence and time-resolved absorption spectroscopy.
Maykel de Miguel, Mercedes Álvaro, Jianfu Ding, Hermenegildo García   +3 more
openaire   +1 more source

1,3,4‐Oxadiazoles

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Synthesis of 5-Trimethylsilylethynyl-1,3,4-oxadiazoles

Russian Journal of Organic Chemistry, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
M. M. Demina, G. I. Sarapulova, A. I. Borisova, L. I. Larina, A. S. Medvedeva   +4 more
openaire   +1 more source

1,3,4-Oxadiazole: A Biologically Active Scaffold

Mini-Reviews in Medicinal Chemistry, 2012
There has been considerable interest in the development of novel compounds with anticonvulsant, antidepressant, analgesic, anti-inflammatory, antiallergic, antipsychotic, antimicrobial, antimycobecterial, antitumour, antiviral and antitubercular activities. 1,3,4-oxadiazoles constitute an important class of compounds for new drug development. Therefore,
H, Khalilullah, M J, Ahsan, Md, Hedaitullah, S, Khan, B, Ahmed   +4 more
openaire   +2 more sources

Keto-1,3,4-oxadiazoles as cathepsin K inhibitors

Bioorganic & Medicinal Chemistry Letters, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
James T, Palmer, Bernard L, Hirschbein, Harry, Cheung, John, McCarter, James W, Janc, Z Walter, Yu, Gregg, Wesolowski   +6 more
openaire   +2 more sources

Novel syntheses of symmetrical 2,5-diaryl-1,3,4-oxadiazoles and 1,4-phenylenebis-1,3,4-oxadiazoles

Russian Chemical Bulletin, 1998
The reactions of trichloromethylarenes with excess hydrazine hydrate in ethanol gives symmetrical 2,5-diaryl-1,3,4-oxadiazoles in 68–96% yields. The reaction of 1,4-bis(trichloromethyl)benzene with acylhydrazines in an ethanol-pyridine mixture gives the corresponding substituted or unsubstituted 1,4-phenylenebis-1,3,4-oxadiazoles in 35–51% yields.
L. I. Belen'kii, S. I. Luiksaar, I. S. Poddubnyi, M. M. Krayushkin   +3 more
openaire   +1 more source

ChemInform Abstract: 1,3,4‐Oxadiazole

ChemInform, 2014
AbstractReview: use of oxadiazole derivatives in in various field like polymer industry and, ost notably, medicinal chemistry; 70 refs.
S. B. Dave, P. Godhani, Y. Ushir
openaire   +1 more source