Disclosed herein is a process for preparation of 1-chloro-2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)propan-2-ol (compound of formula (I)) and 2-(1-chlorocyclopropyl)-2-[(2-chlorophenyl)methyl]oxirane (compound of formula (II)), which are synthetic intermediates in the preparation of triazole fungicides. The process comprises reacting a Grignard reagent of 2-chlorobenzyl halide with 1-chloro-1-chloroacetylcyclopropane, wherein said reaction is carried out at temperatures between 0 C. and 100 C. and characterized in that said reaction is carried out in a solvent system comprising methyl tetrahydrofuran and toluene.

Embodiments of the present disclosure generally relate to processes for forming epoxy resin compositions and processes for separating substrates from complex mixtures. In an embodiment, a process for making an epoxy resin composition is provided and includes: reacting a mixture comprising a substrate, an epihalohydrin, and a catalyst to form a first composition comprising a halohydrin reaction product; introducing an alkaline reagent with the first composition to form a second composition comprising an epoxy resin product; introducing a liquid epoxy resin with the second composition to form a resin mixture; and removing unreacted epihalohydrin from the resin mixture to form the epoxy resin composition. In another embodiment, a process for separating a substrate from a substrate source is provided and includes: introducing an epihalohydrin with the substrate source comprising the substrate, the substrate comprising at least one hydroxyl group, and separating the epihalohydrin and the substrate from the substrate source.

Embodiments of the present disclosure generally relate to processes for forming epoxy resin compositions and processes for separating substrates from complex mixtures. In an embodiment, a process for making an epoxy resin composition is provided and includes: reacting a mixture comprising a substrate, an epihalohydrin, and a catalyst to form a first composition comprising a halohydrin reaction product; introducing an alkaline reagent with the first composition to form a second composition comprising an epoxy resin product; introducing a liquid epoxy resin with the second composition to form a resin mixture; and removing unreacted epihalohydrin from the resin mixture to form the epoxy resin composition. In another embodiment, a process for separating a substrate from a substrate source is provided and includes: introducing an epihalohydrin with the substrate source comprising the substrate, the substrate comprising at least one hydroxyl group, and separating the epihalohydrin and the substrate from the substrate source.