9564
The copper-catalyzed version of this reaction gives only the 1,4 - isomer , whereas Huisgen 's non-catalyzed 1,3 - dipolar cycloaddition gives both the 1,4 - and 1,5 - isomers , is slow , and requires a temperature of 100 degrees Celsius .
 person: Huisgen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Huisgen