| 摘要 |
PURPOSE:To easily obtain the titled compound useful as a herbicide, especially a selective herbicide for paddy field, in high yield, by reacting a solution of cis-2-buten-1-ol with a chloroacetanilide derivative. CONSTITUTION:The objective compound of formula II can be produced by catalytically reducing 2-butyn-1-ol in a solvent such as toluene in the presence of a catalyst (e.g. Pd-CaCO3) to obtain a solution of cis-2-buten-1-ol and reacting the solution with a compound of formula I (R and R' are lower alkyl) at 50-150 deg.C preferably in the presence of a base such as triethylamine. The amount of cis-2-buten-1-ol is equimolar or slightly excess to the compound of formula I.
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