University of California

The Wellcome Foundation Limited

Roussel Uclaf

Other

Ian H Smith

John P Larkin

John E Casida

Christopher J Palmer

John B Weston

David A Pulman

Malcolm H Black

John A Wyatt

The present invention provides a class of substituted bicyclooctanes of formula ##STR1## wherein R is a C.sub.2-10 non-aromatic hydrocarbyl optionally substituted by cyano, halo, C.sub.1-4 alkoxy, C.sub.1-4 haloalkoxy or S(O).sub.m R.sup.3 ; R.sup.1 and r.sup.2 are independently hydrogen, halo, a C.sub.1-3 aliphatic group optionally substituted, S(O).sub.m,R.sup.4, or R.sup.1 and R.sup.2 and the carbon atoms to which they are attached form a C.sub.5-7 carbocyclic ring optionally substituted by halo, or a C.sub.1-3 aliphatic or alkoxy group;

Heterobicycloalkanes as pesticidal compounds

Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2,]-octanes and bicyclo-[2,2,3]-nonanes having 2 or 3 ring hetero atoms selected from O, S and N, substituted at the 1-position by a 4-alkynylphenyl group and at the 4-position and optionally at the 3 and/or 5-position are valuable pesticides, particularly insecticides and acaracides. The compounds may be prepared by reacting an alkyne with the corresponding 4-iodophenyl substituted compound or by debromination of the corresponding 4-dibromomethylphenyl substituted compound.

Trithiabicyclo[2,2,2]octanes

The present invention provides compounds of the formula (I): ##STR1## wherein R is a phenyl group, substituted fluorine atoms formulations containing them and their use in controlling pest infestation.

Pesticidal compounds

Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo-[2,2,3]-nonanes having 2 or 3 ring hetero atoms selected from O, S and N, substituted at the 1-position by a 4-alkynylphenyl group and at the 4-position and optionally at the 3 and/or 5-position are valuable pesticides, particularly insecticides and acaracides. The compounds may be prepared by reacting an alkyne with the corresponding 4-iodophenyl substituted compound or by debromination of the corresponding 4-dibromomethylphenyl substituted compound.

The present invention provides a class of novel substituted bicyclooctanes which have pesticidal activity, particularly against arthropod pests. Pesticidal formulations containing the compounds of the formula (I), their use in the control of pests and methods for their preparation are also disclosed.

A compound of the formula (I): ##STR1## wherein R is C.sub.2-10 alkyl, alkenyl or alkynyl, each optionally subsituted by or methyl substituted by cyano, C.sub.3-4 cycloalkyl, halo, C.sub.1-4 alkoxy or a group S(O)mR.sup.4 where R.sup.4 is C.sub.1-4 alkyl and m is O, 1 or 2, or R is C.sub.3-10 cycloalkyl, C.sub.4-10 cycloalkenyl or phenyl, each optionally substituted by C.sub.1-4 alkoxy, C.sub.1-3 alkyl, C.sub.2-4 alkynyl, halo, cyano or a group S(O)mR.sup.4 as defined hereinbefore; R.sup.1 is halo, C.sub.1-3 alkyl, C.sub.2-3 alkenyl or alkynyl each optionally substituted by halo, cyano, C.sub.1-4 alkoxy, alkyl carbalkoxy containing up to 6 carbon atoms, a group S(O)mR.sup.4 as defined hereinbefore or alkynyl substituted by tri-C.sub.1-4 alkylsilyl, or R.sup.1 is cyano, spiro-cyclopropyl, gem dimethyl, oxo or methylene optionally substituted by cyano or C.sub.1-3 alkyl optionally substituted by fluorine, or R.sup.1 and R and the carbon atoms to which they are attached form a C.sub.5-7 carbocyclic ring optionally substituted by halo, C.sub.1-3 alkyl or alkoxy or C.sub. 2-3 alkenyl, R.sup.2 is phenyl, C.sub.5-10 cycloalkyl or cycloalkenyl each optionally substituted other than phenyl substituted by C.sub.2-3 alkynyl and R.sup.3 is hydrogen, C.sub.1-3 alkyl, C.sub.2-3 alkenyl or alkynyl each optionally substituted by cyano, C.sub.1-4 alkylthio, C.sub.1-4 alkoxy or halo, or R.sup.3 is cyano, its use in medicine, pharmaceutical compositions containing it and processes for its preparation.

Pesticidal bicyclo-octanes are of the formula ##STR1## where R is a substituted or unsubstituted aliphatic or aromatic group, R' and R.sup.3 are H or a substituted or unsubstituted aliphatic or aromatic group, R.sup.2 is a substituted or unsubstituted heterocyclic group containing at least one ring nitrogen and is preferably a 3- or 4- pyridyl group, Z is CH.sub.2 CH.sub.2, CH.sub.2 O--CH.sub.2 S or COCH.sub.2 or CH(OR.sup.5)CH.sub.2 where R.sup.5 is H, alkyl, acyl or carbamoyl at Y and Y' are O or S(O).sub.m where m is 0, 1 or 2. Various methods for their preparation are described.

1-heterocyclic bicyclo-octanes

Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo[2,2,3]-nonanes having 2 or 3 ring hetero atoms selected from O, S and N, substituted at the 1-position by a 4-alkynylphenyl group and at the 4-position and optionally at the 3 and/or 5-position are valuable pesticides, particularly insecticides and acaracides. The compounds may be prepared by reacting an alkyne with the corresponding 4-iodophenyl substituted compound or by debromination of the corresponding 4-dibromomethylphenyl substituted compound.

Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo-[2,2,3]-nonanes, having 2 or 3 ring hetero atoms selected from O, S and N, substituted at the 1-position by a 4-alkynylphenyl group and at the 4-position and optionally at the 3 and/or 5-position are valuable pesticides, particularly insecticides and acaracides. The compounds may be prepared by reacting an alkyne with the corresponding 4-iodophenyl substituted compounds or by debromination of the corresponding 4-dibromomethylphenyl substituted compound.

The present invention relates to a compound of the formula (I): ##STR1## wherein R is C.sub.2-10 alkyl, alkenyl or alkynyl, each optionally substituted by or methyl substituted by cyano, C.sub.3-4 cycloalkyl, halo, C.sub.1-4 alkoxy or a group S(O)m R.sup.4 where R.sup.4 is C.sub.1-4 alkyl and m is 0, 1 or 2, or Ris C.sub.3-10 cycloalkyl, C.sub.4-10 cycloalkenyl or phenyl, each optionally substituted by C.sub.1-4 alkoxy, C.sub.1-3 alkyl, C.sub.2-4 alkynyl, halo, cyano or a group S(O)m R.sup.4 as defined hereinbefore; R.sup.1 is halo, C.sub.1-3 alkyl, C.sub.2-3 alkenyl or alkynyl each optionally substituted by halo, cyano, C.sub.1-4 alkoxy, alkyl carbalkoxy containing up to 6 carbon atoms, a group S(O)m R.sup.4 as defined hereinbefore or alkynyl substituted by tri-C.sub.1-4 alkylsilyl, or R.sup.1 is cyano, spiro-cyclopropyl, gem dimethyl, gem dicyano, gem diethynyl, oxo or methylene optionally substituted by cyano of C.sub.1-3 alkyl optionally substituted by fluorine, or R.sup.1 and R and the carbon atoms to which they are attached form a C.sub.5-7 carbocyclic ring optionally substituted by halo, C.sub.1-3 alkyl or alkoxy or C.sub.2-3 alkenyl, R.sup.2 is phenyl substituted by an C.sub.2-3 alkynyl group or by a tri-C.sub.1-4 alkylsilylalkynyl group and R.sup.3 is hydrogen, C.sub.1-3 alkyl, C.sub.2-3 alkenyl or alkynyl each optionally substituted by cyano, C.sub.1-4 alkylthio, C.sub.1-4 alkoxy or halo, or R.sup.3 is cyano or halo, its use in medicine, pharmaceutical compositions containing it and its preparation.

Growing community of inventors

Eaton Bray, United Kingdom

Ian H Smith