UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper III

Q9(a). Chlorotriphenylmethane with silver: the trityl radical

5 marks
Topic: Unstable, uncharged intermediates
Question only

Question

Write the structure of the product formed when chlorotriphenylmethane is reacted with metallic silver. Justify your answer.

Model answer

The free solution for 2018 answers questions 1, 4, 5, 6, 7 and 10, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.

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Coverstriphenylmethyl radicalGombergtrityl dimerradical stability

All parts of Question 9

9(a) Chlorotriphenylmethane with silver: the trityl radical5 marks
9(b) Product and stereochemistry of an acid-catalysed silyl reaction5 marks
9(c) Electrocyclic product by Woodward–Hoffmann rules5 marks
9(d) Synthetic sequence for a given transformation5 marks
9(e) Aromaticity and methyl shifts of a dimethyldihydropyrene system10 marks