Tablets of Functionalized Polystyrene Beads Alone and in Combination with Solid Reagents or Catalysts. Preparation and Applications in Parallel Solution and Solid Phase Synthesis

Enabling Metallophotoredox Catalysis in Parallel Solution-Phase Synthesis Using Disintegrating Reagent Tablets

Compressed tablets containing a mixture of a photocatalyst, a nickel catalyst, an inorganic base, and an inert excipient are employed as a fast, safe, and user-friendly chemical delivery system for two different metallophotoredox-catalyzed reactions. This delivery method simplifies the preparation of compound libraries using photoredox chemistry in a parallel setting. The reagent tablets were successfully applied to late-stage functionalization of drug-like intermediates. These tablets can be prepared with various reagents and catalysts in different sizes and be stored on the bench thanks to blister packaging.

Nanoporous Magnesium Aluminometasilicate Tablets for Precise, Controlled, and Continuous Dosing of Chemical Reagents and Catalysts: Applications in Parallel Solution-Phase Synthesis

Mechanically robust tablets of nanoporous magnesium aluminometasilicate with high surface area and porosity can be loaded with a variety of organic and inorganic reagents and catalysts. The scope of this novel dosing methodology is demonstrated through the evaluation of 14 diverse organic reactions, including Mitsunobu, Suzuki, and bromination reactions.

Simple tools for resin distribution

Two simple instruments allowing uniform distribution of resin beads for solid-phase synthesis are described. The first tool simplifies distribution of resin into microtiterplates. The second tool was designed for distribution of a variable amount of resin beads into any number of reaction vessels, and the technique is applicable to resin beads with a wide range of physical properties (density).