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Why do haloalkanes form cyanides with kCN and isocyanides with AgCN

Why do haloalkanes form cyanides with kCN and isocyanides with AgCN

Grade:12th

1 Answers

Arun
25750 Points
6 years ago
KCN+C2H5Cl gives C2H5CN+KClAgCN+ C2H5Cl gives C2H5NC+ AgClis 1 reaction suggests being an ambident nucleophile CN can attached with Cor N , When KCN is present K is highly reactive metal and forms ionic means strong bonds as bonds break Kgoes with Cl , C released its positive bond and required another positive part so attached with C of C2H5, while in case of formation of C2H5NC molecule there was no +ve or -ve charges so C2H5 + attracts towards lone pairs of N

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