18221
Carbon nucleophiles are often organometallic reagents such as those found in the Grignard reaction , Blaise reaction , Reformatsky reaction , and Barbier reaction or reactions involving organolithium reagents and acetylides .
 Grignard
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Grignard