Grignard Reagent Synthesis Reaction Mechanism - Organic Chemistry

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  • čas přidán 10. 11. 2015
  • This organic chemistry video tutorial discusses the synthesis reaction mechanism of grignard reagents with water - H2O, D2O, aldehyes including formaldehyde, ketones, esters, acid chlorides, epoxides - ethylene oxide, CO2, etc. This video contains examples and practice problems that not only help you to predict the major product of the reaction but also how to choose the right reagents to synthesize a primary, secondary, and tertiary alcohol. In addition, other reactions were included in this video such as oxidation by H2CrO4, PCC, KMnO4 & H3O+, in addition to Na2Cr2O7 with H2SO4. Reduction of an alkyne to a cis alkene using H2 & lindlar's catalyst and to a trans alkene using Na and NH3 were also considered. The conversion of an alcohol into an alkyl halide using SOCl2 and PBr3 were also mentioned. The reagents used in this video include phenyl magnesium bromide, methyl magnesium bromide, ethyl magnesium bromide, acetyl chloride, cyclopentyl magnesium bromide, acetaldehyde, 2-butanone, etc.

Komentáře • 50

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Před 5 měsíci

    Final Exams and Video Playlists: www.video-tutor.net/

  • @josemarrufo2745
    @josemarrufo2745 Před 5 lety +27

    5:14 he expelled the leaving group, very good

  • @WardenOfTheGreatSaltLake
    @WardenOfTheGreatSaltLake Před 5 lety +34

    Nobody:
    People who drive their motorcycles down the street at 3am: 5:14

  • @binabiswas5337
    @binabiswas5337 Před 5 lety +7

    Thanks for posting this video.No one explains reaction mechanism like you do.

  • @toohot2trot
    @toohot2trot Před 8 lety +28

    Your videos are absolutely AMAZING! Thank you for taking the time to post these, they are incredibly helpful!

  • @D_kiki999
    @D_kiki999 Před 5 lety +33

    5:14 omg omg im awake im awake jeeezzzzz doing me a scare😵😵😵

  • @iitjee4465
    @iitjee4465 Před 7 lety +12

    Being a JEE aspirant, I find this channel extremely helpful for last minute revisions before test.

  • @techienauty1689
    @techienauty1689 Před 7 lety +4

    you have a really great knowledge. keep up the good work.

  • @sofiaregalado7063
    @sofiaregalado7063 Před 5 lety +1

    You just made my homework a lot easier!

  • @shauvik.rana.1970
    @shauvik.rana.1970 Před 6 lety +3

    best video in youtube of grignard reagents....thnkz....best xplained....with a great pace...nd hats off to the long nd continious lecture......best among the best....videos....

  • @asdfghjklmao
    @asdfghjklmao Před 7 lety +3

    What does the H3O+ do in the the first alkylation reaction at 27:32 ?

  • @monicasiamtei8633
    @monicasiamtei8633 Před 5 lety +4

    Fall in love with this voice.....😵

  • @MandTism
    @MandTism Před 6 lety

    Hello and thank you for all that you do! Love the videos. Question, at time 29:17 you can see a cyclopentane attached to an alkyne in the bottom left corner...Shouldnt the carbons attached to the carbons trippled bound be 180 degrees (due to alkynes being sp hybridized)?

  • @henryarias256
    @henryarias256 Před 6 lety

    Quick questions, on the examples at minute 21, for #2, why is the answer an epoxide? wouldn't we need an Aldehyde to get that product? With an R group (CH3) and a Hydrogen on the other side.

  • @neonpothos122
    @neonpothos122 Před 3 lety

    Thank you for your service

  • @jyothi26rab
    @jyothi26rab Před 6 lety

    thanks for explanation. through granard reagent how can we create secondary or Tertiary alcohol .do we have to add an hydrogen or methyl group to get 2ndry product
    thanks

  • @houndnobleman876
    @houndnobleman876 Před 6 lety

    Thank you for helping.

  • @anirudhtammireddy464
    @anirudhtammireddy464 Před 7 lety

    10:21 Isn't the partial positive charge more stable on the tertiary carbon compared to the carbon as shown there>>?

  • @bladivoustok5363
    @bladivoustok5363 Před 6 lety +1

    Really helpful videos = )

  • @sarahsalahuddin7361
    @sarahsalahuddin7361 Před 6 lety

    Thank you so much!!!

  • @shamimanasrin233
    @shamimanasrin233 Před 6 lety

    What abt benzyl bromide....can we react that with magnesium to make grignard reagent????

  • @muhammeddibbasey3928
    @muhammeddibbasey3928 Před 5 lety

    Superb thanks

  • @user-gf8qr6hd7n
    @user-gf8qr6hd7n Před 5 lety

    Amazing

  • @priyankapailu1007
    @priyankapailu1007 Před 5 lety

    Thank you sir ... 😊😊

  • @angelmarg6238
    @angelmarg6238 Před 7 lety

    thanks a lot

  • @saumya209
    @saumya209 Před 6 lety

    how ethane is prepared by grignard reagent explane plzzz

  • @MrHawking91
    @MrHawking91 Před 6 lety +3

    Great video! Very clear explanation. But isn’t the grignard reagent suggested to form via a radical mechanism? DOI: 10.1021/ja00196a053

    • @kendalldoer5466
      @kendalldoer5466 Před 2 lety +2

      There’s both a radical and an ionic mechanism theorized, but no one has been able to conclusively demonstrate one over the other

  • @shkurtejahiu6820
    @shkurtejahiu6820 Před 5 měsíci

    At 7:37 I don't understand why we have 2 CH3, where did the H go from the aldehyde?

  • @armitairavani3120
    @armitairavani3120 Před 8 lety +1

    Why are you not using 1 bar hook? It Ida radical reaction when you're making the Grignard complex?

  • @leannguyen4860
    @leannguyen4860 Před 4 lety

    The reaction in which the grignard reagent reacted with akylhalide is illogical because if so, what would happen when we try to synthesize the grignard reagent is in chaos

  • @bleuuu9679
    @bleuuu9679 Před 6 lety +7

    Am I the only one who finds his voice very soothing? 😅

  • @rakhidas3405
    @rakhidas3405 Před 5 lety

    Why carbon of epoxide is attacked?
    Why not lone pair of oxygen attack Mg2+

  • @vishaldhruva4595
    @vishaldhruva4595 Před 7 lety

    At 37:06, is the reason you cannot use E2 because we are unaware of the specific stereochemistry so we don't know which Hydrogen could be attacked (would be anti and so we could do E2)? Thanks!

  • @maloneroam3699
    @maloneroam3699 Před 4 lety

    why is there audio missing 3rd degree alcohols

  • @isabelle183
    @isabelle183 Před 4 lety

    thanks

  • @Kylitovibes
    @Kylitovibes Před 7 lety

    when the grinard attacks an epoxide . why did it choose the least substituted position?

    • @iitjee4465
      @iitjee4465 Před 7 lety

      Kyle Langlois Steric hindrance.

    • @hushupuppies2599
      @hushupuppies2599 Před 6 lety

      Nucleophilic attack in the opening of an epoxide in a basic medium is done in the least substituted carbon (Sorry for my english im colombian)

  • @saurabhpatil0101
    @saurabhpatil0101 Před 6 lety +1

    10:21 best experience

  • @HM-dm3qg
    @HM-dm3qg Před 6 lety +1

    I love grenade reagent!

  • @karlpietrzak4467
    @karlpietrzak4467 Před 6 lety +1

    What u making ;)

  • @666sniperfire
    @666sniperfire Před 6 lety

    Produck

  • @leannguyen4860
    @leannguyen4860 Před 4 lety

    Such an old video

  • @miaeba
    @miaeba Před 5 lety

    I used to love your vids for gen chem 1. But I think you are making too many vids now. We should start with a carbonyl. You are rushing your explanations too much. The start is just too rushed. Regardless if you are trying to make a RMGX

    • @luisdez3124
      @luisdez3124 Před 4 lety

      dude his videos are great. I am studying for my ochem 2 test that has gringard reactions and his video is great practice. Leave the GOAT alone