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Catalysis and Inorganic Chemistry

Multi-step Csp3- and Csp2-coupling reactions of boronic acids have limited organic chemists for years. Sigma-Aldrich and Gary Molander′s group are proud to introduce a novel dual-catalyst system of nickel (Prod # 244988) and iridium (Prod # 804215) for Single Electron Transfer (SET) cross-coupling reactions. By combining the potential of photoredox reactions with an activated organotrifluoroborates, a one-pot alkyl cross-coupling reaction is now available.

View Details for Aldrich′s Photoredox Iridium Catalyst
Building Blocks

Spirocycles appear in countless biologically active molecules that provide unique applications for medicinal chemists. Spirocyclic moieties (both linear and angular) are a prevalent sub-structure within natural products that exploit three dimensions of a molecule. Sigma-Aldrich now offers a suite of Spirocyclic Building Blocks in collaboration with Erick Carreira′s group. With spiro[3.3]heptanes (Prod # 797529) and spiro[3.4]octanes (Prod # 797413), these diverse spirocyclic compounds innovate discovery by creatively utilizing chemical space.

View Details for Aldrich Product No. 797529 tert-Butyl 3-hydroxy-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate .................. View Details for Aldrich Product No. 797413 2-(tert-Butoxycarbonyl)-5-oxa-2-azaspiro[3.4]octane-7-carboxylic acid

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