title: Micrometer-scale mixing with Pickering emulsions: biphasic reactions without stirring.
abstract: A general strategy that avoids stirring for organic/aqueous reactions involving solid catalysts is reported. The strategy involves converting a conventional biphasic system into a Pickering emulsion phase with micrometer-scale droplets ensuring good mixing. In test reactions, nitrotoluene reduction and epoxidation of allylic alcohols, the reaction efficiency is comparable to conventional stirrer-driven biphasic catalysis reaction systems. Short diffusion distances, arising from the compartmentalization of densely packed droplets, play an important role in boosting the reaction efficiency.
authors.affiliation: School of Chemistry and Chemical Engineering, Shanxi University, Wucheng Road 92,Taiyuan 030006 (PR China).
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Zhang
authors.forename: Luman
authors.initials: L
authors.lastname: Fu
authors.forename: Hengquan
authors.initials: H
authors.lastname: Yang
mesh_terms: D004655:Emulsions / Q000737:chemistry*; D007700:Kinetics; D055616:Microtechnology / Q000379:methods*; D009930:Organic Chemicals / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D004655:Emulsions; D009930:Organic Chemicals; D014867:Water
keywords: biphasic catalysis; diffusion; kinetics; phase-transfer catalysis; synthetic methods