Abstract The present invention relates to carbamates of the general formula IN WHICH R1 represents an alkoxy, aralkoxy, cycloalkoxy, aryloxy, alkylthio, aralkylthio, cycloalkylthio or arylthio radical, or in which R1 represents a secondary or tertiary amido group, R2 represents a hydrogen atom or a lower aliphatic radical and R3 represents a hydrogen atom, a lower aliphatic radical or an unsubstituted or substituted aryl radical. These compounds can be prepared by reaction of a cyanacetic acid ester or cyanacetic acid amide with an agent yielding nitrous acid and further reaction of the resulting oxime with either an isocyanate or a carbamic acid halide. The resulting carbamates are advantageously used as active substances for combating various kinds of pests, especially in preparaions for combating bacteria and fungi affecting animals and plants. Those separations may comprise, if desired, other known additives and pesticides.
Inventors
👤 Adolf Hubele
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-04 07:19
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
30 words
A carbamate as claimed in claim 1 in which R3 is lower alkyl, chloroethyl, unsubstituted phenyl or substituted by at least one of chloro, bromo, trifluoromethyl, methyl, isobutoxy and nitro.
Claim 2
Dependent Claim
30 words
A carbamate as claiMed in claim 1 in which R1 is phenylamino substituted by at least one of chloro, bromo, nitro, trifluoromethyl and alkyl of at most four carbon atoms.
Claim 3
Dependent Claim
35 words
A carbamate as claimed in claim 1 wherein R1 is methoxy, ethoxy or cyclohexyloxy, R2 is hydrogen and R3 is phenylamino substituted by at least one and not more than two of chloro and trifluoromethyl.
Claim 4
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula
Claim 5
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula
Claim 6
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula
Claim 7
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula
Claim 8
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula
Claim 9
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula
Claim 10
Dependent Claim
10 words
A carbamate as claimed in claim 1 having the formula