Electrochemical hydrocarboxylation of enol derivatives with CO: access to β-acetoxycarboxylic acids.

Electrochemical hydrocarboxylation of enol acetates with CO is developed. The disclosed process provides β-acetoxycarboxylic acids in 25-66% yields, in contrast to the electrolysis of ketones, silyl enol ethers and vinyl tosylates with CO, which leads mainly to alcohols.

Synthesis, crystal structure and Hirshfeld surface analysis of 3-(4-fluoro-phen-yl)-2-formyl-7-methyl-imidazo[1,2-]pyridin-1-ium chloride monohydrate.

In the title salt, CHFNO·Cl·HO, the imidazo[1,2-]pyridin-1-ium ring system of the cation is almostly planar [maximum deviaition = -0.047 (2) Å for the ring C atom with the attached arene ring] and forms a dihedral angle of 61.81 (6)° with the plane of the fluoro-phenyl ring.

CO-Assisted Sugar Cane Gasification Using Transition Metal Catalysis: An Impact of Metal Loading on the Catalytic Behavior.

To meet the increasing needs of fuels, especially non-fossil fuels, the production of "bio-oil" is proposed and many efforts have been undertaken to find effective ways to transform bio-wastes into valuable substances to obtain the fuels and simultaneously reduce carbon wastes, including CO. This work is devoted to the gasification of sugar cane bagasse to produce CO in the process assisted by CO. The metals were varied (Fe, Co, or Ni), along with their amounts, in order to find the optimal catalyst composition.