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Alldehydes and Ketones react with NH(2)O...

Alldehydes and Ketones react with `NH_(2)OH` to form aldoximes and Ketoximes respectively. Configuration of these can be determined by Beckmann rearragement as that group migrates which is anti w.r.t -OH

`[X] overset(H_(2)SO_(4))to overset(H_(2)O)to Ph-NH_(2)+CH_(3)-underset(O)underset(||)(C)-OH`
Identify the configuration of [X] compound

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
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Aldehydes and Ketones react with NH_(2)OH to form aldoximes and Ketoximes respectively. Configuration of these can be determined by Beckmann rearragement as that group migrates which is anti w.r.t -OH Which step is Rate determening step ?

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CrCl_(3) underset(NH_(4)OH)overset(NH_(4)Cl)to (A) underset(H_(2)O)overset(Na_(2)O_(2))to (B) underset("acetate")overset("Lead")to(C) In this reaction sequence, the compound (C) is:

Knowledge Check

  • The IUPAC name of the compound, underset(OH)underset(|)(C)H_(2)-underset(NH_(2))underset(|)(C)H-COOH is

    A
    2-amino-3-hydroxypropanoic acid
    B
    1-hydroxy-2-aminopropan-3-oic acid
    C
    1-amino-2-hydroxypropanoic acid
    D
    3-hydroxy-2-aminopropanoic acid.

  • NH_2- underset(CH_3)underset(|)(CH) - overset(O)overset(||)C - NH - CH_2 - CO_2H Identify the amino acid obtained by hydrolysis of the above compound:

    A
    Glycine
    B
    Alanine
    C
    Both (a) and (b)
    D
    None of these

  • In the given reaction [X] will be: C_(6)H_(5)-underset(O)underset(||)(C)-H overset(NH_(2)OH//H^(o+))(to)[X]

    A
    only syn oxime
    B
    only anti axime
    C
    mixture of syn and anti oxime
    D
    secondary amide