O

O

O

O

SeO2

pyridineO

O

O

O

O

OH

Step-A

AMol. Wt.: 210.23Mol. Wt.: 240.21

For 5gr of starting compound undergo reaction at above conditions and 4gr of product has

come.

So, yield calculation:

210.23gr 240.21gr

5gr ?

(5gr*240.21gr)/210.23gr=5.71gr (it is 100% yield)

But we got 4gr of product so actual yield percentage= (4gr/5.71gr)*100= 70.05%