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(A) Della’s addition of alkyl lithium reagents into [1.1.1]propellane. (B) Addition of amines to 1,3-dehydroadamantane. (C) Attempted addition of Hauser bases to [1.1.1]propellane. (D) Davies’ addition of chiral lithium amides to enones. (E) Development and optimization of the direct amination of [1.1.1]propellane. (F) Process-scale synthesis of bicyclo[1.1.1]pentan-1-amine.
