24038
A new series of fluoro substituted pyrazoline derivatives 5a - g and 6a - g were synthesized in good to excellent yield from the corresponding pyrazole chalcones , 4a - g , by using polyethylene glycol - 400 ( PEG - 400 ) as an alternative reaction medium .
 Chemical: fluoro substituted pyrazoline; Chemical: pyrazole chalcones; Chemical: polyethylene glycol - 400; Chemical: PEG - 400
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: fluoro substituted pyrazoline; Chemical: pyrazole chalcones; Chemical: polyethylene glycol - 400; Chemical: PEG - 400