2-Arninofluorene BY JOKN R. SAMPEY AND E. EMMET REID In the Dielsl-Kuhn2 method for the preparation of 2-aminofluorene ten times the calculated amount of zinc is used. Conditions have now been found whereby the amount of zinc can be reduced to one-third, or, if the time of reduction is doubled, to one-sixth of this amount. Procedure.--To a suspension of 30 g. of 2-nitrofluorene in 820 ml. of 95% alcohol and 180 ml. of water are added 10 g. of ...