7‐(4,6‐Dimethoxypyrimidinyl)oxy‐ and ‐thiophthalides as novel herbicides: Part 1. CGA 279 233: a new grass‐killer for rice

Toxicity to Diaphania hyalinata, selectivity to non‐target species and phytotoxicity of furanones and phthalide analogues

“…Until 2005, approximately 180 naturally occurring phthalides had been isolated, most of them from the Apiaceae family . Compounds containing γ –lactone, particularly naturally occurring phthalides and their synthetic analogues, exhibit not only a variety of pharmacological but also phytotoxic, fungicidal and insecticidal activities . Some of these molecules are presented in Fig.…”

Silver-catalysed trifluoromethylation of arenes at room temperature

“…Accordingly, we extended the reaction to trifluoromethylate some more complex molecules in the agrochemistry field, an area where the CF 3 group is particularly prevalent. We could successfully incorporate the CF 3 group into the commercial herbicides pyriftalid 11 and napropamide 12 (Scheme 1). The functional group tolerance of the reaction was illustrated by sulfide, lactone and a-hydroxyamide functionality all being stable to the reaction conditions (Scheme 1, 3 and 4).…”

Gas-phase smiles rearrangement reactions of deprotonated 2-(4, 6-dimethoxypyrimidin-2-ylsulfanyl)-N-phenylbenzamide and its derivatives in electrospray ionization mass spectrometry

“…Also, the 2-(4,6-dimethoxypyrimidin-2-ylthio)benzoic acid derivatives are found to exhibit herbicidal activities against grasses and broadleaf weeds over a wide range of growth stages [3,4]. Therefore, a series of 2-(4,6-dimethoxypyrimidin-2-ylsulfanyl)-N-phenylbenzamide derivatives was synthesized in our laboratory [5] as precursors of pesticides.…”