The compounds, 3,6-dimethoxypyridazine, l,2-dimethyl3,6(1H,2H)-pyridazinedione, and 6-methoxy-2-methyl-3(2H)pyridazinone, were prepared by using reported preparations. Their photochemistry was investigated and compared to the thermal chemistry and photochemistry of maleic hydrazide. , I' 1.!. t, 1, 1 I, I : vii

A continuous-flow asymmetric organocatalytic photocyclization-transfer hydrogenation cascade reaction has been developed. The new protocol allows the synthesis of tetrahydroquinolines from readily available 2-aminochalcones using a combination of photochemistry and asymmetric Brønsted acid catalysis. The photocylization and subsequent reduction was performed with catalytic amount of chiral BINO...

Flavonoids and their photochemical transformations play an important role in biological processes in nature. Synthetic photochemistry allows access to molecules that cannot be obtained via more conventional methods. This review covers all published synthetic photochemical transformations of the different classes of flavonoids. It is first comprehensive review on the photochemistry of flavonoids.

Photochemistry of carbonyl compounds is of major importance in atmospheric and organic chemistry. The photochemistry of cyclohexanone is studied here using on-the-fly molecular dynamics simulations on a semiempirical multireference configuration interaction potential-energy surface to predict the distribution of photoproducts and time scales for their formation. Rich photochemistry is predicted...

This paper presents a transparent microfluidic chip designed for continuous-flow photochemistry applications with integrated electrical sensing. The transparent chip design allows for microscale photochemistry, and permits direct, real-time visual/electrical observation. The microchip uses optically transparent indium tin oxide (ITO) electrodes for reagent and phase tracking. High-speed videogr...

Key words: Chlorophyll fluorescence, heat stress, photo-system II photochemistry, water stress, wheat (Tritium Modulated chlorophyll fluorescence, rapid fluores-aestivum L.). cence induction kinetics and the polyphasic fluores-cence transients (OJIP) were used to evaluate PSII photochemistry in wheat plants exposed to water