This disclosure relates to the field of molecules having pesticidal utility against pests in Phyla Arthropoda, Mollusca, and Nematoda, processes to produce such molecules, intermediates used in such processes, pesticidal compositions containing such molecules, and processes of using such pesticidal compositions against such pests. These pesticidal compositions may be used, for example, as acaricides, insecticides, miticides, molluscicides, and nematicides. This document discloses molecules having the following formula (Formula One). ##STR00001##

This document discloses molecules having the following formula (Formula One):

##STR00001##

and processes associated therewith.

This document discloses molecules having the following formula (Formula One):

##STR00001##

and processes associated therewith.

The present invention relates to processes for the preparation of thietane derivatives of the formula IA

##STR00001##

and thietane derivatives of the formula IB

##STR00002##

wherein R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, B, and n are as defined in the claims. The invention also relates to intermediates useful in the processes, as well as the compounds of formula IA and IB and their use as pesticides.

The present invention relates to processes for the preparation of thietane derivatives of the formula IA

##STR00001##

and thietane derivatives of the formula IB

##STR00002##

wherein R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, B, and n are as defined in the claims. The invention also relates to intermediates useful in the processes, as well as the compounds of formula IA and IB and their use as pesticides.

This disclosure relates to the field of molecules having pesticidal utility against pests in Phyla Arthropoda, Mollusca, and Nematoda, processes to produce such molecules, intermediates used in such processes, compositions containing such molecules, and processes of using such molecules and compositions against such pests. These molecules and compositions may be used, for example, as acaricides, insecticides, miticides, molluscicides, and nematicides. This document discloses molecules having the following formula (Formula One).

##STR00001##

This disclosure relates to the field of molecules having pesticidal utility against pests in Phyla Arthropoda, Mollusca, and Nematoda, processes to produce such molecules, intermediates used in such processes, compositions containing such molecules, and processes of using such molecules and compositions against such pests. These molecules and compositions may be used, for example, as acaricides, insecticides, miticides, molluscicides, and nematicides. This document discloses molecules having the following formula (Formula One).

##STR00001##

This document discloses molecules having the following formula (Formula One): ##STR00001##
and processes associated therewith.

This document discloses molecules having the following formula (Formula One): ##STR00001##
and processes associated therewith.

The present invention relates to processes for the preparation of thietane derivatives of the formula IA ##STR00001##
and thietane derivatives of the formula IB ##STR00002##
wherein R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, B, and n are as defined in the claims. The invention also relates to intermediates useful in the processes, as well as the compounds of formula IA and IB and their use as pesticides.