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Byju's Answer
Standard XII
Chemistry
Hinsberg Test
The following...
Question

The following rearrangements involve the formation of isocyanate intermediate

A
Hoffmann rearrangement
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B
Curtius rearrangement
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C
Wolff rearrangement
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D
Lossen rearrangement
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Solution

The correct options are
A Hoffmann rearrangement
B Curtius rearrangement
D Lossen rearrangement
R – N = C = 0 is involved in A, B, D only. ‘C’ involves ketene intermediate.

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