Insecticidal benzodioxol-4-yl carbamates and intermediates thereof
AssigneeFisons Limited
InventorPeter Stuart Gates
Life of this patent
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Abstract
There are provided benzodioxol-4-yl carbamates of the formula: ##STR1## where R.sup.1 represents H, alkyl or phenyl; R.sup.2 represents alkyl; R.sup.3 represents H, alkyl, alkenyl, alkynyl, alkanoyl or benzoyl; R.sup.4 represents alkyl, alkenyl or alkynyl; and R.sup.5, R.sup.6 and R.sup.7, which may be the same or different, each represent H, halogen, or alkyl. The compounds are insecticidal.
Claims12
The benzodioxol-4-yl carbamates of the formula ##STR6## wherein R.sup.1 represents hydrogen, an alkyl group of 1 to 6 carbon atoms which may be unsubstituted or substituted by halogen, alkylthio or by alkoxy, a phenyl group which may be unsubstituted or substituted by haloen, alkoxy or by alkyl, or a group --OR.sup.2 where R.sup.2 is as defined hereinafter;
- R.sup.2 represents an alkyl group of 1 to 6 carbon atoms which may be unsubstituted or substituted by halogen or by alkoxy;
- R.sup.3 represents hydrogen or an alkyl, alkenyl or alkynyl group of not more than 4 carbon atoms which may be unsubstituted or substituted by halogen or by alkoxy, or an alkanoyl group of 2 to 10 carbon atoms;
- and
- R.sup.4 represents an alkyl, alkenyl or alkynyl group of not more than 4 carbon atoms which may be unsubstituted or substituted by halogen or by alkoxy.
A benzodioxol-4-yl carbamate selected from:
- 2-methoxy-1,3-benzoidoxol-4-yl N-methylcarbamate,
- 2-methoxy-2-methyl-1, 3-benzodioxol-4-yl N-methylcarbamate,
- 2-methoxy-2-ethyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-methoxy-2n-propyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-methoxy-2-isopropyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-methoxy-2-chloromethyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-methoxy-2-phenyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2,2-dimethoxy-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-2-methyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-2-ethyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-2-n-propyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-2-isopropyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-2-chloromethyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-ethoxy-2-ethylthiomethyl-1,3-benzodioxol N-methylcarbamate,
- 2-propoxy-2-ethyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-propoxy-2-n-propyl-1,3-benzodioxol-4-yl N-methylcarbamate,
- 2-methoxy-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-methoxy-2-methyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-methoxy-2-ethyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-methoxy-2-n-propyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-methoxy-2-isopropyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2,2-dimethoxy-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-ethoxy-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-ethoxy-2-methyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-ethoxy-2-ethyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-ethoxy-2-propyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate,
- 2-ethoxy-2-isopropyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate, and 2-ethoxy-2-chloromethyl-1,3-benzodioxol-4-yl N,N-dimethylcarbamate.
The compounds of the formula ##STR7## wherein R.sup.1 represents hydrogen, an alkyl group of 1 to 6 carbon atoms which may be unsubstituted or substituted by halogen, alkylthio or by alkoxy, a phenyl group which may be unsubstituted or substituted by haloen, alkoxy or by alkyl, or a group --OR.sup.2 where R.sup.2 is as defined herinafter;
- and
- R.sup.2 represents an alkyl group of 1 to 6 carbon atoms which may be unsubstituted or substituted by halogen or by alkoxy.
The compounds of the formula ##STR8## wherein R.sup.1 represents hydrogen, an alkyl group of 1 to 6 carbon atoms which may be unsubstituted or substituted by halogen, alkylthio or by alkoxy, a phenyl group which may be unsubstituted or substituted by halogen, alkoxy or by alkyl, or a group --OR.sup.2 where R.sup.2 is as defined hereinafter;
- R.sup.2 represents an alkyl group of 1 to 6 carbon atoms which may be unsubstituted or substituted by halogen or by alkoxy.
Dependencies are inferred from the claim text.