Abstract: Solid-supported trithiol compounds are prepared. The solid-supported trithiol compounds have formula (I): in which R is a linker moiety, X is a solid support, and n?1. The compounds of formula (I) may be incorporated into methods for removing heavy metals from solutions and into batch systems or filtration apparatus that remove heavy metals from solutions.

Abstract: Solid-supported trithiol compounds are prepared. The solid-supported trithiol compounds have formula (I): in which R is a linker moiety, X is a solid support, and n?1. The compounds of formula (I) may be incorporated into methods for removing heavy metals from solutions and into batch systems or filtration apparatus that remove heavy metals from solutions.

Abstract: Di(ketene acetals) are prepared by photoisomerizing the corresponding di(vinyl acetals).

Abstract: Di(ketene acetals) are prepared by photoisometizing the corresponding di(vinyl acetals).

Abstract: The invention describes novel 1-arylimidazoles of formula (I) ##STR1## wherein typically preferred substituents are: X is S(O).sub.n R.sub.1, in which R.sub.1 is an alkyl group, preferably a methyl group, which is fully substituted by halogen atoms, and n is 0, 1 and 2;Y is hydrogen, halogen, alkyl, alkoxy, alkoxyalkylideneimino, alkylsulfenyl, alkylsulfinyl or alkylsulfonyl;Z is hydrogen, halogen, alkyl, preferably methyl; andR.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are individually hydrogen, halogen or an unsubstituted or halo-substituted alkyl, alkoxy, alkylsulfenyl, alkylsulfinyl or alkylsulfonyl.The invention further describes intermediates and processes to make the compounds, compositions of the compounds, and methods of use of the compounds for the control of arthropods (especially mites, aphids or insects), nematodes, helminths, or protozoa.