نتایج جستجو برای: 134 oxadiazoles

تعداد نتایج: 13377  

2014
Helen F Gleeson Sarabjot Kaur Verena Görtz Abdel Belaissaoui Stephen Cowling John W Goodby

Over the last ten years, the nematic phases of liquid crystals formed from bent-core structures have provoked considerable research because of their remarkable properties. This Minireview summarises some recent measurements of the physical properties of these systems, as well as describing some new data. We concentrate on oxadiazole-based materials as exemplars of this class of nematogens, but ...

Journal: :Organic letters 2015
N N Bhuvan Kumar Dmitry M Kuznetsov Andrei G Kutateladze

Photogenerated azaxylylenes undergo intramolecular cycloadditions to 1,3,4-oxadiazole pendants, which are accompanied by concomitant release of dinitrogen, yielding functionalized ketopiperazinoquinolinols containing an oxirane moiety fused to the quinolinole moiety while spiro-connected to diketopiperazine. These primary photoproducts are reactive versatile intermediates which can be further d...

Journal: :Molecules 2011
Nagwa Mohamed Mahrous Hamada Essam Mohamed Sharshira

Some new heterocyclic compounds containing isoxazole, pyrazole and oxadiazole ring systems were prepared from various chalcones. The synthesized compounds have been characterized by elemental analysis and spectral methods. These compounds were screened for their antimicrobial activities.

Journal: :Progress in Photovoltaics: Research and Applications 2017

Journal: :Prehospital and Disaster Medicine 1995

2012
Poonam Singh Pramod Kumar Sharma Jitendra Kumar Sharma Anshu Upadhyay Nitin Kumar

BACKGROUND Substituted 1,3,4-oxadiazoles are of considerable pharmaceutical interest. 2,5-Substituted diphenyl-1,3,4-oxadiazoles are associated with diverse biological activities by the virtue of -N = C-O- grouping. In the view of wide range of biological properties associated with 1,3,4-oxadiazole, we have synthesized substituted derivatives of 1,3,4-oxadiazole (XIII-XXII), a versatile hydroph...

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