In the title mol-ecule, C(19)H(23)NO(5), the dihedral angle formed by the benzene ring and the planar part of the dihydro-pyridine ring is 83.52 (5)°. The dihydro-pyridine ring adopts a flattened boat conformation. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, generating chains running parallel to [100]. The crystal structure is consolidated by C-H⋯O contacts.

The 1,4-dihydro-pyridine ring in the title compound, C(17)H(19)NO(5), has a flattened-boat conformation, and the benzene ring is almost orthogonal to it [dihedral angle = 82.98 (12)°]. The hydr-oxy group is disordered over two positions in a 0.780 (4):0.220 (4) ratio. In the crystal, hydrogen-bonding inter-actions of the type N(a)-H⋯O(c) and O(h)-H⋯O(c) (a = amine, c = carbonyl and h = hydr-oxy...

The structure of the title salt, 2C(2)H(7)OS(+)·Br(6)Te(2-)·2C(2)H(6)OS, displays O-H⋯O hydrogen bonding between one protonated dimethyl sulfoxide mol-ecule and a neighboring dimethyl sulfoxide mol-ecule, and an octa-hedral geometry for the Te atom; the latter is situated on a center of inversion.

Decryptification of acid phosphatase in Geotrichum sp. arthrospores was accomplished using acetone or dimethyl sulfoxide treatment. Both dimethyl sulfoxide and acetone irreversibly destroyed the integrity of the spore membranes without solubilizing acid phosphatase.

A synthetic method for the preparation of 6-aryl-1,4-dimethyl-9H-carbazoles involving a palladium catalyzed coupling reaction of 1,4-dimethyl-9H-carbazole-6-boronic acids and (hetero)aryl halides is described.

1. Marked differences in the duration of symptoms were observed when sublethal single doses of different dimethyl phosphate esters were injected intravenously into rats. The compounds inducing prolonged symptoms (OO-dimethyl S-ethylthioethyl phosphorothiolate, OO-dimethyl S-ethylsulphinylethyl phosphorothiolate and OO-dimethyl S-ethylsulphonylethyl phosphorothiolate) either persisted themselves...

The zwitterionic compounds Im-E-Mel [9, E S (a), Se (b), Te (c), Im 2-{1,3-diisopropyl-4,5-dimethylimidazolium}, Mel 5-{2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ylide}] are obtained from the corresponding 2-chalcogeno-1,3-diisopropyl-4,5-dimethylimidazolines 8 and 5-bromo-2,2-dimethyl-4,6-dioxo-1,3-dioxan (7) in the presence of triethylamine in excellent yields. The crystal structures of the thermal...