- Process for the preparation of 1-fluoro-cyclopropane-1-carboxylic acid
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A new process for the preparation of 1-fluoro-cyclopropane-1-carboxylic acid of the formula STR1 which process comprises a) reacting in a first step, a 1-fluoro-cyclopropyl phenyl ketone of the formula STR2 in which R represents hydrogen, halogen, methyl, methoxy, phenyl or phenoxy, with an peroxy compound in the presence of a diluent, and b) reacting, in a second step, the resulting 1-fluoro-cyclopropane-1-carboxylate of the formula STR3 in which R has the abovementioned meaning, with a base in the presence of a diluent, and then acidifying the mixture. New 1-fluoro-cyclopropane-1-carboxylates of the above-mentioned formula.
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- Substituted azolylmethyl-cyclopropyl-carbinol derivatives
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Plant growth-regulating and fungicidal compounds of the formula STR1 in which Ar represents optionally substituted aryl or optionally substituted heteroaryl, R1 represents hydrogen, alkyl, alkenyl, alkynyl, trialkylsilyl, optionally substituted phenylalkyl or an acyl radical, R2 represents halogen, cyano, thiocyano, alkylcarbonyloxy, alkylcarbonylthio or the groupings --X--R3 and --NR4 R5, R3 represents alkyl, cycloalkyl, alkenyl, alkynyl, hydroxyalkyl, alkylthioalkyl, carboxyalkyl, alkoxycarbonylalkyl, optionally substituted aryl, optionally substituted aralkyl or the radical of the formula STR2 R4 and R3 independently of one another represent hydrogen or alkyl, or R4 and R5, together with the nitrogen atom to which they are bonded, represent an optionally substituted cycloaliphatic ring which can contain further heteroatoms, X represents oxygen, sulphur, an SO group or an SO2 group, or R2 furthermore represents hydrogen when Ar represents optionally substituted heteroaryl, and Y represents nitrogen or a CH group, or addition products thereof with acids or metal salts. Novel intermediates are also shown.
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- Use of azolylmethyl-cyclopropylcarbinol derivatives for combating pseudocercosporella herpotrichoides
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Combating Pseudocercosporella herpotrichoides by use of an azolylmethyl-cyclopropyl-carbinol derivative of the formula STR1 in which R1 represents fluorine or chlorine and R2 represents fluorine or chlorine.
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