Abstract In this work, a functionalized gallium metal–organic framework with active dioxo-molybdenum (VI) centers was evaluated as catalyst in the epoxidation of soybean oil using tert-butyl-hydroperoxide an oxidizing agent. The influence reaction time, temperature, and concentration agent studied, it demonstrated that highest epoxide selectivity obtained at 110 °C after 4 h (29% conversion 91%...

In the crystal structure of the title compound, C(13)H(18)N(2)O(4), the asymmetric unit consists of three crystallographically independent ethyl 4-butyl-amino-3-nitro-benzoate mol-ecules. There is an intra-molecular N-H⋯O hydrogen bond in each mol-ecule, which generates an S(6) ring motif. The structure is stabilized by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds.

In the title mol-ecule, C(10)H(11)NO(5), the methyl C atom deviates by 0.830 (6) Å from the mean plane of the remaining non-H atoms. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the bc plane.

The title compound, C(17)H(16)N(2)O(3)S, crystallizes in the thio-amide form with an intra-molecular N-H⋯O hydrogen bond across the thio-urea system. Mol-ecules are connected in chains parallel to [10] by hydrogen bonds from the second thio-urea N-H group to the benzoate C=O function.

BACKGROUND Ergosterol has been considered the "fungal sterol" for almost 125 years; however, additional sterol data superimposed on a recent molecular phylogeny of kingdom Fungi reveals a different and more complex situation. METHODOLOGY/PRINCIPAL FINDINGS The interpretation of sterol distribution data in a modern phylogenetic context indicates that there is a clear trend from cholesterol and...