Organic doubts

FEW QUESTIONS ARE OP DIFFICULT SOME VERY SIMPLE PLEASE HELP
JUST sending wait


@Sanjay_S

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@Rudra_d @Lavesh @AshWin @Cooljet123 @ishan_singh @Ishaan_Shrivastava @Samosa

Q.12 is NGP reaction. Retention product is formed.
Answer will be B.

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pls bhai written bhej do ye pata hai sngp … but cooh kaise

Q.7 : Benzyne mechanism SNAr reaction

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Read the last part, they gave product after acidification.

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answer ??? in q7 they did not mention mechanism

image
Similar reaction
Answer will be B.

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ok ya … gotcha

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Q.8 : Mechanism is not needed. Look up the use the use of the reagent nBu3SnH.
Double bond splits to form radical, at high temperature, 5 membered ring is thermodynamically more stable.

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I have an exam now, others will help you with the rest.

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Which ones are left bro?

3,6,8,23 bro @KrishSharma
@Rudra_d @Lavesh @AshWin @ishan_singh @Ishaan_Shrivastava @Samosa @Sanjay_S

For 23 you can read this Antiperiplanar Relationships: The E2 Reaction and Cyclohexane Rings

WHY E 2 WHY NOT SN 2 ? bro @KrishSharma

The solvent is polar protic. Polar protic solvents hinder SN2 reactions, as they can hydrogen bond to nucleophiles and make them less effective in attacking the substrate. Ethanol is a polar protic solvent (though alcohols are only weakly acidic). It is commonly seen as a solvent/nucleophile (solvolysis) in SN1 reactions. @UnknowinglyAnonymous

i mean not sn2 or sn1 sorry but why not sn happening and here sn 2 will happen as main nucleophile is charged one other just stablizes the nucleophile

Remember that -ME groups attached to the carbon containing the leaving group increases rate of Sn2 greatly. ( -ME not -I)

Now 3 is done

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In question 3, electron withdrawing effect increases Sn2

bro 4 th doubt hai … not 3 only see the ones i circled @Rudra_d