(a) One proposed method for removing NO from motor vehicle emissions is by catalytic reduction using NH₃ as the reducing agent. Bearing in mind the regulated, allowed emissions, write a balanced equation for the redox reaction and show that the oxidation state changes balance.

(b) In the presence of Grubbs’ catalyst, compound 25.36 undergoes a selective ring-closure metathesis to give a bicyclic product A. Draw the structure of a ‘first generation’ Grubbs’ catalyst. Suggest the identity of A, giving reasons for your choice. Write a balanced equation for the conversion of 25.36 to A.

Transcribed Image Text:

0 X 0 (25.36)