| 摘要 |
2-Alkoxy-2-phenyl-1,3-dioxolan-4-one derivs. of formula (I) are new: Q = a gp. of formula (a) or (b): R1,R2 = H, 1-8C alkyl, 3-8C alkenyl, etc.; or CR1R2 = a 3-7 membered ring which opt. contains 1 heteroatom chosen from O, S and N(R9) and which is opt. substd. by 1-4C alkyl; R3 = 1-8C alkyl, cyano(1-5C)alkyl, nitro(1-8C)alkyl, 3-8C alkenyl, 3-8C alkynyl, etc.; R4 = H, halo, Me, MeO, OH, CF3O, CCHF2O or CN; R5 = H, F or Cl; R9 = H or 1-4C alkyl; W = Me or Et.
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