نتایج جستجو برای: 5 oxadiazole

تعداد نتایج: 1216478  

2011
David B. Cordes Guoxiong Hua Alexandra M. Z. Slawin J. Derek Woollins

The title compound, C(15)H(12)N(2)O, adopts the expected near-planar geometry, the phenyl and tolyl rings being inclined relative to the oxadiazole ring by 3.8 (3) and 8.3 (2)°, respectively. This allows adjacent mol-ecules to pack in a parallel fashion and form stacking along [010] via π-π inter-actions [centroid-centroid distances = 3.629 (2) and 3.723 (2) Å]. Further inter-molecular inter-ac...

2015
Marion Donnier-Maréchal David Goyard Vincent Folliard Tibor Docsa Pal Gergely Jean-Pierre Praly Sébastien Vidal

Glycogen phosporylase (GP) is a promising target for the control of glycaemia. The design of inhibitors binding at the catalytic site has been accomplished through various families of glucose-based derivatives such as oxadiazoles. Further elaboration of the oxadiazole aromatic aglycon moiety is now reported with 3-glucosyl-5-amino-1,2,4-oxadiazoles synthesized by condensation of a C-glucosyl am...

2017
Elham Jafari Tahereh Mohammadi Ali Jahanian-Najafabadi Farshid Hassanzadeh

1,3,4-oxadiazoles are interesting compounds because of their valuable biological effects such as cytotoxic, antibacterial, antifungal, and anti-tubercular activities. Ethyl mandelate was treated with hydrazine hydrate to yield the corresponding acylhydrazide. Some of the 2,5 disubstituted 1,3,4-oxadiazole derivatives were prepared from acylhydrazide using three different procedures. In the firs...

Journal: :Acta poloniae pharmaceutica 2008
Asif Husain Mohammad Sarafroz Priyanka Ahuja

In the present investigation, two novel series of 2-[3-(4-chlorophenyl)propan-3-one]-5-(substituted phenyl)-1,3,4-oxadiazole and 2-[3-(4-ethylphenyl)propan-3-one]-5-(substituted phenyl)-1,3,4-oxadiazole were synthesized and tested for their antiinflammatory, analgesic, ulcerogenic and antibacterial actions. A fair number of compounds were found to have very good antiinflammatory activity in car...

Journal: :Catalysts 2022

α-Imino gold carbenoid species have been recognized as key intermediates in a plethora of processes involving gold-activated alkynes. Here, we explored the pathways Au(I)-catalyzed [3 + 2] reaction between mild nucleophiles: anthranil, 1,2,4-oxadiazole, or 4,5-dihydro-1,2,4-oxadiazole, and an ynamide, PhC≡C-N(Ts)Me, proceeding via formation aforementioned α-imino carbene intermediate which, aft...

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

2010
Hoong-Kun Fun Mohd Mustaqim Rosli Sankappa Rai Arun M Isloor Prakash Shetty

In the title compound, C(9)H(6)Cl(2)N(2)O, the dihedral angle between the oxadiazole and benzene rings is 1.7 (2)°. In the crystal, the mol-ecules are linked into chains along the b axis by short inter-molecular Cl⋯O contacts [3.019 (3) Å].

2010
Hoong-Kun Fun Mohd Mustaqim Rosli Sankappa Rai Arun M. Isloor Prakash Shetty

In the title compound, C(14)H(8)Cl(2)N(2)O, the dihedral angles between the plane of the oxadiazole ring and those of the benzene rings are 2.3 (1) and 9.5 (1)°. In the crystal, mol-ecules are linked into chains along the c axis by C-H⋯Cl inter-actions. These chains are stacked along the a axis.

2008
Muhammad Zareef Rashid Iqbal Muhammad Arfan Masood Parvez

The title mol-ecule, C(12)H(12)N(2)O(3)S, is composed of two individually planar units, viz. 5-phenyl-1,3,4-oxadiazol-2-yl-sulfanyl and ethyl acetate, which are oriented at almost right angles [80.07 (8)°] with respect to each other. The structure is stabilized by weak inter-molecular C-H⋯O and C-H⋯N hydrogen bonds. The phenyl and oxadiazole rings show π-π stacking inter-actions [centroid-centr...

2015
Mahabaleshwara Subrao Dakshina Murthy Potukuchi Girish Sharada Ramachandra Poornima Bhagavath Sangeetha G Bhat Srinivasulu Maddasani

Two novel series of unsymmetrically substituted 1,2,4-oxadiazole viz., R.Ox.C(*)C n compounds are synthesized and characterized. An optically active, (S)-(+)-methyl 3-hydroxy-2-methylpropionate is used to introduce a chiral center in the molecule. A biphenyl moiety prepared by Suzuki coupling reaction is directly attached to the oxadiazole core at C-5 position. Investigations for the phase beha...

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