A simple and efficient method for the synthesis of p-quinone monoimide ketals and p-benzoquinone monoketals by using a hypervalent iodine reagent, diacetoxyiodobenzene, has been developed. These two types of ketals are achieved from a single starting material by varying the reaction conditions.

The utilization of solar energy via photoelectrochemical cells (PEC) towards hydrogen (H2) production is a promising approach in the field artificial photosynthesis. In this work, synthesis and complete characterization first covalently linked porphyrin-cobalt diimine-dioxime dyad (ZnP-Co) reported. synthetic procedure that was followed based on simple high yielding reactions, without using any...

A specific color reaction has been developed for the detection of N-7, N-8-(1,2-dihydroxycyclohex-1,2-ylene)-L-arginine-containing peptides. The reaction is based on the fact that hydroxylamine converts the blocking group to cyclohexanedione dioxime, which forms a red nickel complex. N-7, N-8-(1,2-dihydroxycyclohex-1,2-ylene)-L-arginine-containing peptides can also be detected by diagonal elect...

A protocol based on [Ru(Me3tacn)(CF3CO2)2(H2O)]CF3CO2 (1, Me3tacn = 1,4,7-trimethyl-1,4,7triazacyclononane) as catalyst and tert-butyl hydroperoxide (TBHP) as oxidant was developed for oxidation of anisoles to p-benzoquinone monoketals. This reaction can be formally considered as regioselective aromatic C-H oxidation. With 2-methoxyanisole as substrate, 3,4-dimethoxy-4-tert-butoxy-2,5-cyclohexa...

With the development of self-healing materials and increasing demands from complicated application environment, underwater is attracting more attention. However, until now, effects different dynamic chain extender water molecular on polyurethanes have not been investigated yet. In this work, we synthesized two types with 2,4-pentanedione dioxime (DMG) bis(4-hydroxyphenyl) disulfide (HPS) as ext...

Highly efficient and eco-friendly antimicrobial agents are crucial to the development of future marine antifouling coatings. A high low bio-toxicity bio-based anti-biofoulant, 2,5-diformylfuran dioxime chelating with copper ions (E-DFFD-Cu), is evaluated. Its minimal bactericidal concentration for 50% maximal effect (EC50) 4.95 7.03 µmol L−1, respectively. Excellent anti-biofouling performance ...