N-substituted perhydro-2,3-diazines of the formula I
in which the variables Z, R, m and RA are as defined in claim 1, a process for their preparation and the use of the compounds of the formula I as starting materials for preparing herbicides of the formula V
in which R, RA, Z and m are as defined above, X is O or S and Q is a C6-C14-aromatic radical are described.
Method for producing anellated tetrahydro-{1h}-triazoles
申请人:——
公开号:US20040097728A1
公开(公告)日:2004-05-20
The present invention relates to a process for preparing fused tetrahydro-[
1
H]-triazoles of the formula I
1
where the variables R
a
, Z, Z
1
, X, W, n and Q are as defined in claim 1, by cyclization of compounds of the formula II
2
where R is C(X)OR
2
or C(X)SR
2
, where X is oxygen or sulfur, and R
2
is as defined in claim 1, in the presence of a base.
The invention also relates to compounds of the formula I where W is sulfur if Z is a methylene group optionally substituted by R
a
, and furthermore to compounds of the formula I where Q is a benzoxazole or benzothiazole radical, and to the use of these compounds as herbicides.