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Upstream product

• 1194-02-1 4-fluorobenzonitrile 
• 456-22-4 4-Fluorobenzoic acid 
• 22179-78-8 4-fluoro-benzamidoxime 
• 54872-86-5 O-(p-Fluorbenzoyl)-4-fluorbenzamidoxim 
• 459-23-4 4-fluorobenzaldoxime 
• 459-57-4 4-fluorobenzaldehyde 
• 403-43-0 4-fluorobenzoyl chloride 

Relevant academic research and scientific papers

Synthesis of new bipolar host materials based on 1,2,4-oxadiazole for blue phosphorescent OLEDs

Two novel bipolar host materials, namely 3,5-bis(4-(9H-carbazol-9-yl) phenyl)-1,2,4-oxadiazole (pCzmOXD) and 3,5-bis(3-(9H-carbazol-9-yl)phenyl)-1,2, 4-oxadiazole (mCzmOXD) were designed and synthesized, by incorporating a new block 1,2,4-oxadiazole as th

Imidazole hydrochloride promoted synthesis of 3,5-disubstituted-1,2,4-oxadiazoles

Imidazole hydrochloride as an additive promotes the reaction of amidoximes and DMA derivatives to generated 3,5-disubstituted-1,2,4-oxadiazoles in low to excellent yields without the use of coupling reagents, oxidants, strong acids or bases and other additives.

Potassium Poly(Heptazine Imide): Transition Metal-Free Solid-State Triplet Sensitizer in Cascade Energy Transfer and [3+2]-cycloadditions

Polymeric carbon nitride materials have been used in numerous light-to-energy conversion applications ranging from photocatalysis to optoelectronics. For a new application and modelling, we first refined the crystal structure of potassium poly(heptazine imide) (K-PHI)—a benchmark carbon nitride material in photocatalysis—by means of X-ray powder diffraction and transmission electron microscopy. Using the crystal structure of K-PHI, periodic DFT calculations were performed to calculate the density-of-states (DOS) and localize intra band states (IBS). IBS were found to be responsible for the enhanced K-PHI absorption in the near IR region, to serve as electron traps, and to be useful in energy transfer reactions. Once excited with visible light, carbon nitrides, in addition to the direct recombination, can also undergo singlet–triplet intersystem crossing. We utilized the K-PHI centered triplet excited states to trigger a cascade of energy transfer reactions and, in turn, to sensitize, for example, singlet oxygen (1O2) as a starting point to synthesis up to 25 different N-rich heterocycles.

Highly efficient one-pot preparation of 1,2,4-oxadiazoles in the presence of diazabicycloundecene

New highly efficient method for the cyclization of acylamidoximes in the presence of diazabicycloundecene was developed and incorporated into a general and practical one-pot synthesis of 1,2,4-oxadiazoles (11 examples, 85-97% yields).

One-pot synthesis of 3,5-disubstituted 1,2,4-oxadiazoles directly from nitrile and hydroxylamine hydrochloride under solvent-free conditions using potassium fluoride as catalyst and solid support

A one-pot synthesis of 3,5-disubstituted 1,2,4-oxadiazoles with two identical substituents directly from the reaction of nitriles and hydroxylamine hydrochloride in the presence of potassium fluoride as catalyst and solid support under solvent-free condit