C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 319/08 (2006.01) A01N 43/32 (2006.01) A01N 43/34 (2006.01) A01N 43/72 (2006.01) C07D 239/60 (2006.01) C07D 319/18 (2006.01) C07D 327/06 (2006.01) C07D 401/12 (2006.01) C07D 403/12 (2006.01) C07D 405/04 (2006.01) C07D 407/02 (2006.01) C07D 407/04 (2006.01) C07D 409/04 (2006.01) C07D 411/04 (2006.01) C07D 413/02 (2006.01) C07D 413/04 (2006.01) C07D 417/04 (2006.01) C07F 7/08 (2006.01)
Patent
CA 2134626
Cyclic acetals, their preparation and their conversion to crop protection agents Abstract Cyclic acetals of the formula I Image I where the substituents have the following meanings: R1 and R2 are hydrogen, unsubstituted or substituted alkyl or phenyl; addition- ally R1 and R2 together are an unsubstituted or substituted C2-C6-alkylene chain; Y is oxygen or sulfur; A is a radical A1 to A6; A1 is hydroxyl; A2 is a halogen atom, haloalkylsulfonyloxy, alkylsulfonyloxy or fluoro- sulfonyloxy; A3 is cyano, nitro or formyl; A4 is a phenyl ring or a 5- or 6-membered saturated or unsaturated het- erocycle having up to four heteroatoms from the group consisting of nitrogen, sulfur and oxygen in the ring; naphthyl or a benzo-fused 5- or 6-membered heteroaromatic having 1 to 3 heteroatoms from the group consisting of nitrogen, sulfur and oxygen; A5 is an alkenyl, cycloalkenyl, cycloalkadienyl or alkynyl group; A6 is an alkyl or cycloalkyl group; where the radicals A4, A5 or A6 can be substituted; with the proviso that A is not a hydroxyl group if R1 and R2 are both hydrogen or if R1 is hydrogen and R2 is phenyl; a process for preparing the acetals I and their use for the pro- duction of crop protection compositions are described.
Baumann Ernst
Gerber Matthias
Konig Hartmann
Rheinheimer Joachim
Vogelbacher Uwe J.
Basf Aktiengesellschaft
Robic
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