No abstract

The Cu(I)-based complex prepared from (S)-2-(furan-2-yl-methylamino)-2-phenylethanol (5c) and CuCl was used as catalyst in enantioselective Henry reactions of arylaldehydes and nitromethane, which gave 89% ee and 95% yield at ambient temperature. The proposed catalytic cycle of an asymmetric Henry reaction was suggested.

In the title compound, C16H14ClN3O2, all bond lengths and angles are normal. The mean plane of the oxadiazoline ring makes dihedral angles of 1.94 (3) and 82.05 (3)° with the substituted pyridine and benzene rings, respectively. No classical hydrogen bonds are evident in the crystal packing.

In the title compound, C18H15ClFN3O4, the dihedral angle between the substituted pyridine ring and the oxadiazo­line ring is 9.73 (19)° and the acyl group is coplanar with the oxadiazo­line ring [O—C—N—C torsion angle = −2.1 (3)°]. Furthermore, the substituted benzene ring is almost orthogonal with the oxadiazo­line ring, the dihedral angle between them being 87.56 (18)°.

Synthesis and Bioactivities of Clopyralid Hydrazide-Hydrazones. -A series of novel clopyralid hydrazide-hydrazones (III) is synthesized and screened for herbicidal and antimicrobial activities but with no promising results. -(ZHANG, J.; SHEN, T.; XU, L.; SHEN, F.; QIN, Q.; MA, C.; SONG*, Q.; Synth. Commun. 40 (2010) 6, 814-820,