Assertion: chlorobenzene | /r/HasProperty | prepared
Facets:
value: from p-chlorobenzenesulfonic acid
type: OTHER
value: in 1851
type: TEMPORAL
Source sentences:
text: Chlorobenzene was first prepared in 1851 by the reaction of phenol and phosphorus pentachloride; its formation by the chlorination of benzene was observed in 1868.
text: The hydrolysis reaction whereby chlorobenzene 'is prepared from p-chlorobenzenesulfonic acid is as follows: