8923
The first example of Ir - catalyzed asymmetric substitution reaction with vinyl trifluoroborates is described .
 Chemical: Ir; Chemical: vinyl trifluoroborates
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: Ir; Chemical: vinyl trifluoroborates