Metal-catalyzed 1,3-dipolar cycloaddition reactions of nitrile oxides

In the present review advances in the metal-catalyzed 1,3-dipolar cycloaddition reactions of nitrile oxides, mainly in the last decade, will be presented and discussed. An overview on the structure, preparation, dimerization and related reactions as well as the relevant aspects in the cycloaddition chemistry of nitrile oxides (including mechanistic aspects) have also been considered

Polyester nitrile <i>N</i>-oxides for click reactions synthesized with nitroalkane precursors as the initiator

Polyesters that have a nitrile N-oxide function at the initiation end were prepared and applied to a catalyst-free click reaction for star polymer synthesis.</p

Preparation of a highly reactive polymer click reagent, PEG nitrile N-oxide, and its application in block and star polymer synthesis

The polymer nitrile N-oxide containing poly(ethylene glycol) (PEG) skeleton PEG-CNO was synthesized via a stepwise reaction.</p

Marine Biodegradation of Poly(butylene succinate) Incorporating Disulfide Bonds Triggered by a Switch Function in Response to Reductive Stimuli

Although poly­(butylene succinate) (PBSu) is degraded in compost and soil, it does not undergo degradation in the ocean. This study incorporated a switch function into PBSu to release low-molar-mass compounds that microorganisms can metabolize to enable biodegradation in ocean environments. The disulfide bonds in poly­(butylene succinate-co-butylene dithioglycolate) (PBSDT) undergo reductive degradation in an environment with low oxidation–reduction potential (ORP), such as marine sediments. It acts as a switch to initiate PBSDT biodegradation. The reduced degradation compound, thioglycolate-butylene-succinate-butylene-thioglycolate, showed high biochemical oxygen demand (BOD) biodegradability. In contrast, PBSDTs had low BOD biodegradability under conditions of high ORP. In addition, the high-molar-mass PBSDT was molded into a film for experiments in mechanical strength