In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 26364-65-8, name is 2-Cyanoimino-1,3-thiazolidine, introducing its new discovery. COA of Formula: C4H5N3S
A Convenient and General Method for the Preparation of tert-Butoxycarbonylaminoalkanenitriles and Their Conversion to Mono-tert-butoxycarbonylalkanediamines
A new method is described for the synthesis of tert-butoxycarbonylaminoalkanenitriles 3 by dehydration of the corresponding carboxamides 2 (prepared in two steps from aminoalkanoic acids) in the presence of trifluoroacetic anhydride and triethylamine.N-Boc-aminoalkanenitriles 3 are easily converted to mono-N-Boc-alkanediamines 4 under mild conditions avoiding the cleavage of the N-protective group.The monoprotected alkanediamines 4 are useful tools in affinity chromatography.
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Reference：
Quinuclidine – Wikipedia,
Quinuclidine | C7H625N | ChemSpider