Shweta Thakur posted an Question
February 13, 2021 • 17:43 pm 30 points
  • IIT JAM
  • Chemistry (CY)

.plz check.....this is cross aldol condensation when acetaldehyde react with propanalde hyde ha-h4c ch y-- hc-o1 mrchhd+ 7 ha-clg-o hu-01-t-og-u t hac d-(0h h

Oy-CH- CHe- HO (bhohaudlophyd 1ptohauuldlyd O-O -CHo Ok CH HG-CHO C-CH-cy-GH-CHO Ha-H4C cH y-- HC-O1 Mrchauism 8 HC-H9ČHD+ 7 Ha-Clg-O Hu-01-t-Og-u t HAC d-(0h HACCHCH--CHHD HaC-d-%-

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  • Achyut ranjan gogoi best-answer

    Since this is a cross aldol reaction where both the reactants have alpha hydrogen, so you will get 4 products here. Out of those, the one you are showing looks more stable because there the double bond is in conjugation with CHO group

  • Achyut ranjan gogoi

    This is a cross aldol condensation where both the reactants have alpha hydrogen. So 2 products are possible. Yes, the product you are showing looks more stable because there the double bond is in conjugation with CHO group

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    I have confusion

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    Priyanshu kumar Best Answer

    Yes correct shweta👍

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    but I think the product should be this

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    shweta you get mixture of products

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    four products are obtained

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    got shweta?

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    sir I know

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    one mint

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    sir ye question jisme mujhe product 3 main confusion ho ri hai jisme first acetaldehyde then propandehy de ko combine krna

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    trick ke according product glt BN rha ..but Mera mechanism bhi to Shi hai (as you are saying)

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    sir plzexplain

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    ok wait

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    3rd correct hai shweta

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    aldol tak

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    after that alkene wale wrong hai...

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    ok

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    kaisr

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    got or not?

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    inka c vala product dekgo

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    mane to mechanism se Kiya

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    shweta sahi to hai...same kaha hai dekho inke 3rd wale me base propanal pe attack kiya hai

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    or tmne 3rd diff case liya hai base acetaldehyde pe attack kiya hai

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    bs tmhara ye mistake hai baki sab correct hai

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    sir video main propandehy ke hydrogen Ka attack krwaya acetaldehyde pe

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    4 cases honge to 1-1case dono possibility ka hoga na

  • Achyut ranjan gogoi

    Yes. This is correct. Mechanism looks fine

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    sir this is the correct answer

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    Dinesh khalmaniya 1 best-answer

    yes correct 👍👍 Here 4 product are possible because both have alpha H

    images (27).jpeg
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    by mechanism mere last 3 and 4 th product same BN re gai

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