About: http://webisa.webdatacommons.org/193706644

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	where X is a leaving group, for example toluene sulfonyl or halo and R1 as defined in general formula (V).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com