Jacob Volhard, born on June 4, 1834 in Darmstadt, Grand Duchy of Hesse and by Rhine, was known for the VolhardErdmann cyclization and the HellVolhardZelinsky halogenation.
(1834-06-04)4 June 1834
Darmstadt, Grand Duchy of Hesse and by Rhine VolhardErdmann cyclization ,
HellVolhardZelinsky halogenation. 
