About: http://webisa.webdatacommons.org/66426919

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	Sulfonic acid derivatives of opiate alkaloid are converted to the corresponding sulfonyl chlorides by reaction with a chlorinating reagent such as thionyl chloride, phosphoryl chloride, phosphorus pentachloride, or the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com