The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II):

##STR00001##

comprising treating a compound of Formula (I):

##STR00002##

with a transition metal catalyst and under alkylation conditions as valence and stability permit.

The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II):

##STR00001##

comprising treating a compound of Formula (I):

##STR00002##

with a transition metal catalyst and under alkylation conditions as valence and stability permit.

Cross-linking agent(s), composition(s) made therefrom and use(s) thereof. For example, crosslinking agent(s) that are used to make composition(s) such as hydrogel material(s). Such materials are useful in the manufacture of biocompatible medical devices, for example, hydrogel materials having desirable physical properties for use as contact lense(s) and/or stimulating device(s).

Cross-linking agent(s), composition(s) made therefrom and use(s) thereof. For example, crosslinking agent(s) that are used to make composition(s) such as hydrogel material(s). Such materials are useful in the manufacture of biocompatible medical devices, for example, hydrogel materials having desirable physical properties for use as contact lense(s) and/or stimulating device(s).

Disclosed is a mixture comprising (a) a compound of Formula I and salts thereof wherein A.sup.1, A.sup.2, A.sup.3, R.sup.1, B.sup.1, B.sup.2 and B.sup.3 are defined in the disclosure, and (b) 2-pyridinecarboxylic acid, 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)-5-fluoro-, phenylmethyl ester (i.e. florpyrauxifen-benzyl). Also disclosed is a composition comprising the mixture. Also disclosed is a method of applying the mixture to undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of the mixture of the invention.

##STR00001##

Disclosed is a mixture comprising (a) a compound of Formula I and salts thereof wherein A.sup.1, A.sup.2, A.sup.3, R.sup.1, B.sup.1, B.sup.2 and B.sup.3 are defined in the disclosure, and (b) 2-pyridinecarboxylic acid, 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)-5-fluoro-, phenylmethyl ester (i.e. florpyrauxifen-benzyl). Also disclosed is a composition comprising the mixture. Also disclosed is a method of applying the mixture to undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of the mixture of the invention.

##STR00001##

Disclosed are compounds of Formula 1, N-oxides of the compounds and salts of the compounds and N-oxides:

##STR00001##

wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, Q.sup.1, Q.sup.2, J, Y.sup.1, and Y.sup.2 are as defined in the disclosure.

Also disclosed are compositions containing the compounds, N-oxides and salts, and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of such a compound. N-oxide, salt or composition.

Disclosed are compounds of Formula 1, N-oxides of the compounds and salts of the compounds and N-oxides:

##STR00001##

wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, Q.sup.1, Q.sup.2, J, Y.sup.1, and Y.sup.2 are as defined in the disclosure.

Also disclosed are compositions containing the compounds, N-oxides and salts, and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of such a compound. N-oxide, salt or composition.

The present invention provides a composition comprising (A) a compound of formula (I): (I) wherein R.sup.1 is methyl or methoxy, R.sup.2 is hydrogen, methyl or ethoxy and A is a substituted heteroaryl group, or an N-oxide or salt form thereof, and (B) one or more further herbicides of formula (II); as well as the use of such compositions in controlling plants or inhibiting plant growth.

##STR00001##

The present invention provides a composition comprising (A) a compound of formula (I): (I) wherein R.sup.1 is methyl or methoxy, R.sup.2 is hydrogen, methyl or ethoxy and A is a substituted heteroaryl group, or an N-oxide or salt form thereof, and (B) one or more further herbicides of formula (II); as well as the use of such compositions in controlling plants or inhibiting plant growth.

##STR00001##