The title pyrrole derivative, C(12)H(17)NO(4), consists of a pyrrole ring with two diagonally attached meth-oxy-carbonyl groups and two diagonally attached ethyl groups. The two carbonyl groups are approximately in the same plane as the pyrrole ring, making dihedral angles of 3.50 (19) and 6.70 (19)°. In the crystal, adjacent mol-ecules are assembled into dimers in a head-to-head mode by pairs ...

In the title compound, C15H11BrN4OS, the least-squares plane through the 5-bromo-isatin fragment forms a dihedral angle of 13.63 (14)° with the phenyl ring. The mol-ecular conformation features intra-molecular N-H⋯N and N-H⋯O hydrogen bonds. In the crystal, mol-ecules are connected via pairs of N-H⋯O inter-actions into centrosymmetric dimers. Additionally, π-π stacking inter-actions link mol-ec...

In the mol-ecule of the title compound, [Re(C5H10NO2)(CO)3(H2O)], the Re(I) atom adopts a distorted octa-hedral coordination sphere defined by one aqua and three carbonyl ligands as well as one amino N and one carboxyl-ate O atom of the chelating valinate anion. The carbonyl ligands are arranged in a fac-configuration around the Re(I) ion. In the crystal, an intricate hydrogen-bonding system un...

The nonenzymatic reaction between amino groups of proteins, lipids and nucleic acids with carbonyl group of reducing sugars is called glycation. Glycation primarily occurs at intrachain lysine residues of proteins and involves the condensation reaction of the carbonyl group of reducing sugar aldehydes with the amino groups of lysine residues. Several other carbonyl compounds bearing a reducing ...

Nucleophilic transformations of azido-containing carbonyl compounds are disclosed. The phosphazide formation from azides enabled groups with nucleophiles.