Nitro catechols via 2 hydroxyl group and a nitro group have a wide range of functions including reagents form stable complexes with more than 40 elements in the fields of analytical chemistry, biochemistry, coordination chemistry, environmental chemistry, atrium exploration, organic chemistry, pharmacy, etc. Moreover, the nitro to amine recovery has a potential function in different fields. In ...

17 selected flavones derivatives, flavonoids, were analyzed through a systematic B3LYP/6-311++G** computational study with the aim of understanding the molecular factors that determine their structural and energetic properties in gas phase. Flavonoids were selected in a systematic way to infer the effect of the number and relative positions of hydroxyl groups on molecular properties. Different ...

We show here that purified chlorocatechol dioxygenase from Pseudomonas putida is able to oxygenate a wide range of substituted catechols with turnover numbers ranging from 2 to 29 s-1. This enzyme efficiently cleaves substituted catechols bearing electron-donating or multiple electron-withdrawing groups in an intradiol manner with kcat/KM values between 0.2 x 10(7) and 1.4 x 10(7) M-1 s-1. Thes...