About: http://webisa.webdatacommons.org/444011870

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	When an amine (for example, triethylamine) is allowed to exist in the reaction solution in an amount about 1 to 2 times that of the acid anhydride, a 2-hydroxy form in which R5 is a hydrogen atom can be obtained.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com