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Reagents with a Crystalline Coat
Authors:Dipl‐Chem Alexander Schwenger  Dr Wolfgang Frey  Prof Clemens Richert
Institution:Institut für Organische Chemie, Universit?t Stuttgart, Stuttgart, Germany
Abstract:Tetrakis(dimethoxyphenyl)adamantane (TDA) readily forms crystalline inclusion complexes with reactive, toxic, or malodorous reagents, such as benzoyl chloride, acetyl chloride, cyclohexyl isocyanide, phosphorus trichloride, and trimethylsilyl chloride. The crystals are stable and largely free of the problematic properties of the free reagents. When exposed to solvents such as DMSO or MeOH, the reagents react, and a large portion of the TDA precipitates. The TDA‐coated reagents may lead to a safer way of storing, handling, and delivering reagents, and ultimately to synthetic protocols that do not require fume hoods.
Keywords:adamantane  controlled release  encapsulated reagents  synthetic methods  X-ray diffraction
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