About: http://webisa.webdatacommons.org/273007859

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Thus, for example, a hydroxyalkyl substituent may be converted to a halogenoalkyl substituent by reaction with a halogenating agent such as thionyl chloride, phosphorus tribromide in the presence of an inert solvent such as chloroform.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es