Lactone formation in the oxidation of diols with N-iodosuccinimide and silver acetate

Heterogeneous Catalysts for the One-Pot Synthesis of Chemicals and Fine Chemicals

“…Lactones can be synthesized by dehydrogenation or oxidation of the corresponding α,ω-diols and cyclic ketones (Scheme ). Current methods for the synthesis of lactones involve the use of strong reaction conditions and oxidants , or the sacrifice of a series of cooxidants such as aldehydes and N-oxides.…”

Support Effect of New Au/FeOx Catalysts in the Oxidative Dehydrogenation of α,ω-Diols to Lactones

“…They can be synthesized by dehydrogenation or oxidation of the corresponding α,ω-diols and cycloketones. Current synthesis procedures involve with fierce reaction conditions and oxidants, , or the sacrifice of a series of cooxidants such as aldehydes, , N -oxide, and so forth. Abundant wastes are generated, and the process is not in accordance with the requirements of green chemistry and sustainable development.…”

Efficient Route to Tetramethylalumoxane and Carboxylate Alumoxanes through the Alkylation of Phthalic Acid

“…Subsequent addition of 0.5 equivalents of 1,2‐bis(4‐pyridyl)ethane to the reaction mixture at ambient temperature resulted in slow deposition of colorless crystals of the novel carboxylate alumoxane 2 (path a, Scheme ). Interestingly, analysis of the reaction mixture confirmed the conversion of approximately half of an equivalent of phthalic acid into 3,3‐dimethyl‐2‐benzofuran‐1(3 H )‐one ( A ) 14. Thus, the additional equivalent of AlMe 3 leads to C‐alkylation of the carboxylate group with the concomitant formation of the cyclic ester A and tetramethylalumoxane, and the latter alumoxane species is subsequently trapped by unreacted 1 .…”