| 摘要 |
Nitrophenyl ethers I (R = optionally substituted 1,3-dioxolan-4- ylmethyl, 1,3-dioxan-5-yl, alkylsulfonyl; XZ = H, halogen; Y = halogen, trimethyl fluoro, methoxy) were prepared. Thus, 3,4- Cl2C6H3CF3 was treated with resorcinol to give m-[2,4-Cl(CF3) C6H3O≉2C6H4, which was nitrated to give 2,4-[2,4-ClCCF3)C6H3O≉2 C6H3NO2(II) II was treated with 1,2-cyclopentylideneglycerol to give III, At 5 g/area III totally controlled barnyard grass in rice.
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