Process for preparing a compound of the formula (I) in which R
1
and R
2
are each independently H, C
1
-C
8
-alkyl, halogen, polyhalo-C
1
-C
8
-alkoxy, polyhalo-C
1
-C
8
-alkyl, C
1
-C
8
-alkoxy, C
1
-C
8
-alkoxy-C
1
-C
8
-alkyl, or C
1
-C
8
-alkoxy-C
1
-C
8
-alkoxy, where R
1
and R
2
are not both H, and R
3
is C
1
-C
8
-alkyl, which is characterized in that a) a compound of the formula (II) in which R
1
and R
2
are each as defined above and X is Br, I, triflate, toyslate or mesylate is reacted with prop-2-yn-1-ol to give the compound of the formula (III), b) the compound of the formula (III) is reacted with an alkyl-metal compound in which “alkyl” is as defined above for R
3
to give a compound of the formula (I).
制备式(I)化合物的过程,其中R1和R2各自独立地为H、C1-C8烷基、卤素、多卤素C1-C8烷氧基、多卤素C1-C8烷基、C1-C8烷氧基、C1-C8烷氧基-C1-C8烷基或C1-C8烷氧基-C1-C8烷氧基,其中R1和R2不能同时为H,而R3为C1-C8烷基,其特征在于a)将式(II)化合物与丙-2-炔-1-醇反应,其中R1和R2如上所定义,X为Br、I、
三氟甲磺酸盐、
对甲苯磺酸盐或
甲磺酸盐,从而得到式(III)化合物,b)将式(III)化合物与一种“烷基”定义如上所定义的烷基
金属化合物反应,从而得到式(I)化合物。