Regular paperDisubstitution on hexafluorobenzene with FORMANILIDE (cas 103-70-8)s

Add time:08/13/2019    Source:sciencedirect.com

Nucleophilic attack on hexafluorobenzene by sodium formanilides gave N,N′-diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine as the main product at elevated temperature and N,N′-diformyl-N,N′-diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine as the main compound at ambient temperature. Metallation of formanilide with lithium hydroxide instead of sodium hydride gave only 2,3,4,5,6-pentafluorodiphenylamine.

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