Ivanov, Konstantin L Ring opening of donor-acceptor cyclopropanes with the azide ion: a tool for construction of N-heterocycles. [electronic resource] - Chemistry (Weinheim an der Bergstrasse, Germany) Mar 2015 - 4861 p. digital Publication Type: Journal Article ISSN: 1521-3765 Standard No.: 10.1002/chem.201500456 doi