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Table 1 Record of students’ experimental reports

From: Application of α-bromination reaction on acetophenone derivatives in experimental teaching: a chemical innovation experiment engaging junior undergraduates

Yield

< 60%

61–70%

71–80%

81–90%

> 90%

Number of students

1

1

2

11

3

Percentage

5.6%

5.6%

11.1%

61.1%

16.7%