Transformation of aromatic bromides into aromatic nitriles via formations of grignard reagents and their DMF adducts

The silver catalyzed direct C-H functionalization of quinones with dialkyl amides

DMA and other dialkylamides were successfully used as synthons for the C-H functionalization of quinones. This novel amidoalkylation reaction works with a variety of substituted quinones and dialkyl/alkyl amides, such as DMF, NMP and NMA, and the corresponding products were obtained in moderate to good yields. The amidoalkylation of quinones is demonstrated for the first time. A suitable mechanism and the synthetic utility of these compounds are demonstrated. The molecular docking of compound 5 with an Alzheimer's disease (AD) associated AChE target site was studied.

Terminal methyl as a one-carbon synthon: synthesis of quinoxaline derivatives via radical-type transformation

An iron-promoted method for the construction of pyrrolo[1,2-a]quinoxaline derivatives has been developed. Various solvents with terminal methyl group, including ethers, amines and dimethyl sulfoxide, were utilized as carbon sources for the synthesis.

Nickel-catalyzed carbonylation of arylboronic acids with DMF as a CO source

By using N,N-dimethylformamide (DMF) as a CO source, nickel-catalyzed carbonylation of arylboronic acids was demonstrated as an efficient and facile protocol for the synthesis of diaryl ketones.

Sandmeyer cyanation of arenediazonium tetrafluoroborate using acetonitrile as a cyanide source

Palladium-catalyzed cyanation of aryldiazonium tetrafluoroborate using acetonitrile as a non-metallic cyanide source was achieved in the presence of Ag₂O under ambient air, eliminating the involvement of highly toxic CuCN used in the traditional Sandmeyer reaction, in which the CN group comes from metallic cyanides.

Transition-metal-free cross-coupling of thioethers with aryl(cyano)iodonium triflates: a facile and efficient method for the one-pot synthesis of thiocyanates

A novel transition-metal-free method for the one-step synthesis of thiocyanates via the C–S bond cleavage of readily available thioethers was developed.

5-Bromo-benzene-1,3-dicarbo-nitrile

The asymmetric unit of the title compound, C₈H₃BrN₂, consists of two mol­ecules. The crystal structure features undulating mol­ecular sheets with the mol­ecules linked by C—H⋯N hydrogen bonds with one N atom acting as a bifurcated acceptor. N⋯Br inter­actions also occur [N⋯Br = 2.991 (3) and 3.099 (3) Å]. Inter­layer association is accomplished by offset face-to-face arene inter­actions [centroid–centroid distance = 3.768 (4) Å].