Synthesis of a Variety of 2-Alkyl-2-Azabicyclo[3.1.1]heptane-1-carbonitriles via a Dynamic Addition-Intramolecular Substitution Sequence
作者:Christian Stevens、Ann De Blieck
DOI:10.1055/s-0030-1260811
日期:2011.7
An improved two-step synthetic approach towards 3-(2-chloroethyl) cyclobutanone is described and used in the synthesis of a class of 2-alkyl-2-azabicyclo[3.1.1]heptane-1-carbonitriles. The key step consists of a reversible addition of hydrogen cyanide onto the in situ generated imines, followed by an intramolecular nucleophilic substitution, thereby leading to the bicyclic skeleton in moderate to good