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Beckmann rearrangement
Ketoxime while treated with acid at 0°C it goes through rearrangement termed as Beckmann rearrangement.
So, acid catalysed conversion of ketoximes to N-substituted amides is known as Beckmann rearrangement. Acid catalyst utilized is proton acids (H2SO4, HCl, H3PO4) and Lewis acids (PCl5, SOCl2, PhSO2Cl, RCOCl, SO3, BF3 etc)
A covalent bond is likely to be formed between two elements which: (1) Have similar electronegativities (2) Have low ionization energies (3) Have low melting points (4
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