<http://webisa.webdatacommons.org/138516279>	<http://www.w3.org/ns/prov#value>	"The naphthalenesulfonyl halides to be used are represented by the general formula R'--SO2 X, wherein R' is the same as in formula (I) and X is a halogen atom such as chlorine or bromine." .
<http://webisa.webdatacommons.org/prov/380247555>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/138516279> .
<http://webisa.webdatacommons.org/138516279>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/70786634>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/138516279> .
<http://webisa.webdatacommons.org/138516279>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .