This invention relates to novel pyrazolopyrimidines of the formula
in which
R
1
, R
2
, R
3
, X
1
and X
2
are as defined in the disclosure, to a process for preparing these substances and to their use for controlling harmful organisms. This invention further relates to novel intermediates of the formulae
and to processes for their preparation.
本发明涉及式如下的新型
吡唑嘧啶类化合物
其中
R
1
, R
2
, R
3
, X
1
和 X
2
的定义、制备这些物质的工艺及其用于控制有害
生物的用途。本发明还涉及式中的新型中间体
及其制备工艺。