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Showing 1 to 2 of 2 for “"bis(amino)cyclopropenylidene"”.
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The Utilization of Carbene Catalysis and Different Synthetic Strategies for Sydnone Construction
… benzoin was conducted using carbene precatalyst bis(amino)cyclopropenylidene (BAC-H) with multiple different bases that are used in literature. It was determined that the combination of bases sodium hydride and KHMDS provided moderate yields of benzoin. Further optimization studies were then …
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Preparation of Novel Carbenes and their Catalytic Application to the Cross-Benzoin, Aza-Benzoin and Stetter Reactions
… aliphatic aldehydes as well. A library of bis(amino)cyclopropenium salts were prepared, and the corresponding bis(amino)cyclopropenylidenes (BACs) generated in situ were screened in the Stetter reaction. Among those tested, bis(diethylamino)cyclopropenylidene (EtBAC) was found to be the …