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Choose the correct enol content order of...

Choose the correct enol content order of the following compounds in their pure liquid state
I) `CH_(3)COCH_(3)` II) `CH_(3)COCH_(2)COOC_(2)H_(5)` III) `C_(6)H_(5)COCH_(2)COOC_(2)H_(5)`
IV) `CH_(3)COCH_(2)COCH_(3)` V) `C_(6)H_(5)COCH_(2)COCH_(3)`

A

II `gt` III `gt` IV `gt` I `gt` V

B

III `gt` II `gt` I `gt` V `gt` IV

C

V `gt` IV `gt` III `gt` II `gt` I

D

V `gt` III `gt` IV `gt` II `gt` I

Text Solution

Verified by Experts

The correct Answer is:
C
`{:(C_(6)H_(5)COCH_(2)COCH_(3)gtCH_(3)COCH_(2)COCH_(3)gtC_(6)H_(5)COCH_(2)COOC_(2)H_(5)gtCH_(3)COCH_(2)COOC_(2)H_(5)gtCH_(3)COCH_(3)),("(extented conjugation)"" "O" "O),(" "||" "||),(" (two-C-groups are (esterisless-I tan -C- group)"),(" stoony-I groups)"):}`"
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The percentage of enol content in the following is in the order I) CH_(3)COCH_(2)COCH_(3) II) CH_(3)COCH_(2)COOCH_(3) III) CH_(3)COCH_(2)CH_(2)CH_(5)

The compounds C_(2)H_(5)OC_(2)H_(5) and CH_(3)OCH_(2)CH_(2)CH_(3) are

Give the IUPAC names of the following compounds: (i) CH_(3)CH_(2)CO(CH_(2))_(3)CH_(3) , (ii) CH_(3)CH(CH_(3))CH_(2)CH_(2)CHO (iii) CH_(3)CH_(2)COCH_(2)COCH_(3) and (iv) CH_(3)CH_(2)CH= CHCHO

Which the IUPAC name of CH_(3).CH(CH_(3))CH_(2)COOC_(2)H_(5)

How can the following conversions be effected ? (a) CH_(3)COCl rarr CH_(3)CHO (b) CH_(3)COCl rarr CH_(3)COCH_(3) (c ) CH_(3)CN rarr CH_(3)CHO (d) CH_(3)CN rarr CH_(3)CH_(2)OH

The order of strengths of the following carboxylic acidic is (i) CH_(3)-CH_(2)-COOH (ii) CH_(3)-COOH (iii) C_(6)H_(5)-COOH (iv) C_(6)H_(5)-CH_(2)COOH

IUPAC name of CH_(3)CH_(2)CH_(2)COCH_(3) is

Expand each of the following condensed formulas into their completes structural formulas: (a) CH_(3)CH_(2)CH_(2)COCH_(2)CH_(3) (b) CH_(3)CH = CH (CH_(2))_(2) CH_(3)

Name the following compounds according to IUPAC system of nomenclature: {:((i) CH_(3)CH(CH_(3))CH_(2)CH_(2)CHO, (ii) CH_(3)CH_(2)COCH(C_(2)H_(5))CH_(2)CH_(2)Cl),((iii) CH_(3)CH=CHCHO, (iv) CH_(3)COCH_(2)COCH_(3)),((v) CH_(3)CH(CH_(3))CH_(2)C(CH_(3))_(2)COCH_(3), (vi) (CH_(3))_(3)C CH_(2)COOH),((vii) OHC C_(6)H_(4)CHO-p,):}

Give the IUPAC names of the following compounds: (CH_(3))_(3) C CH_(2)CHO, CH_(3)CH= CHCHO, CH_(3)CH_(2)COCH (C_(2)H_(5))CH_(2)CH_(2)Cl and CH_(3)CH(OH)CH_(2)COCH_(3)