Помогите найти статью:
Crown cation complex effects. 15. Phase-transfer synthesis of arenediazocyanides and synthesis of arenediazosulfones from arenediazonium cations and the formation of reduced pyridazines by 2 + 4 cycloaddition reactions.
Michael F. Ahern, Ahuva Leopold, James R. Beadle, George W. Gokel
J. Am. Chem. Soc., 1982, 104 (2), pp 548–554.
Код: Выделить всё
http://dx.doi.org/10.1021/ja00366a030Большое спасибо!