N,N-Bis­(anthracen-9-yl­methyl)­propyl­amine

The title compound, C₃₃H₂₉N, was obtained by the reaction of 9-chloro­methyl­anthracene and n-propyl­amine. Two anthra­cenyl­methyl units are linked to the N atom of n-propyl­amine and the dihedral angle between the two anthracene systems is 64.3 (2)°.

3-(Imidazolidin-2-yl­idene)-6-methyl-3,4,5,6-tetra­hydro-2H-pyran-2,4-dione

The title compound, C₉H₁₂N₂O₃, was synthesized by the reaction in ethanol of ethane-1,2-di­amine and 3-[bis­(methyl­thio)­methyl­ene]-6-methyl-3,4,5,6-tetra­hydro-2H-pyran-2,4-dione. Two intramolecular N—H...O hydrogen bonds induce a high degree of planarity.

6,7-Dihydro-6-meth­yl-3-(methyl­sulfanyl)-1-(p-tolyl)­pyrano[4,3-c]pyrazol-4(1H)-one

The title compound, C₁₅H₁₆N₂O₂S, which is a potentially new bioactive mol­ecule containing pyrazole and pyrone ring systems, was synthesized by the reaction of 1-p-tolyl­hydrazine and 3-[bis­(methyl­thio)methyl­ene]dihydro-6-meth­yl-3H-pyran-2,4-dione in ethanol.

1-[4-(4-Methyl­pyrimidin-2-yl)piperazin-1-ylmeth­yl]-1H-benzotriazole

The title compound, C₁₆H₁₉N₇, is a potent new herbicide. X-ray analysis reveals that the piperazine ring adopts a chair conformation and weak C—H...N hydrogen bonds link the mol­ecules into a chain along the a axis.

3-(2-Chloro­phen­yl)-N-(2-cyano-4-meth­yl-2-pent­yl)-5-methyl­isoxazole-4-carboxamide

The title compound, C₁₈H₂₀ClN₃O₂, is a potent new herbicide. X-ray analysis reveals that the benzene ring is twisted away from the isoxazole ring by 67.7 (1)°. The crystal packing is stabilized by inter­molecular N—H...N and C—H...O hydrogen bonds.

N²-(2-Nitrophenyl­sulfon­yl)-N⁵-n-propylglutamine

The title compound, C₁₄H₁₉N₃O₇S, is a potent new herbicide. X-ray analysis reveals that the nitro group is twisted away from the benzene ring and the glutamine residue adopts a folded conformation. The crystal packing is stabilized by inter­molecular N—H...O and O—H...O hydrogen bonds.

1-Benzoyl-6-methyl-3-methyl­sulfanyl-6,7-dihydro-1H-pyrano[4,3-c]pyrazol-4-one

The title compound, C₁₅H₁₄N₂O₃S, a potent new bioactive mol­ecule which contains pyrazole and pyrone ring systems, was synthesized by the reaction of benzohydrazide and 3-[bis­(methyl­sulfan­yl)methyl­ene]dihydro-6-methyl-3H-pyran-[2,4-dione in ethanol.