Process for the preparation of compounds of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, X and n have the meaning given in the description, by reacting acetates with carbon monoxide in the presence of a basic auxiliary, followed by alkylation. The products are intermediates for fungicidal acrylates.
制备式(I)化合物的过程,其中R.sup.1,R.sup.2,R.sup.3,X和n具有描述中给出的含义,通过在碱性辅助剂的存在下将
乙酸盐与
一氧化碳反应,然后进行烷基化。 该产品是杀真菌
丙烯酸酯的中间体。