Condensation Reactions | 5 Minute Chemistry | Shishir Mittal | SM Sir

Official Channel: / vyasedification
Website: www.vyasedific...
Online Learning platform: online.vyasedi...
For admission queries, please contact - [phone]
Office Address: 141-A, Vyas Lane, Talwandi, Kota. (Raj.) - 324005
Shishir Mittal | SM Sir
IIT Chemistry
JEE Chemistry
IIT-JEE Chemistry
The answer of the question asked in 5 minute chemistry dated 09-07-20 (Amalgam) is available at our official channel
/ vyasedification
Condensation Reactions | 5 Minute Chemistry | Shishir Mittal | SM Sir

[@somnathchakrabarty3462]

This is called E1cb reaction..where elimination of poor leaving group (like -OH,-F group) in basic medium takes place. In such reactions firstly,carbanion is formed in presence of strong base and we potentially land up getting hoffman alkene as a major product.But in condensation reaction,we get a conjugated pi-bond as major product because the carbanion formed is stabilized by -M effect of the carbonyl group

[@geetikanetam2372]

222

[@alpenliebeshorts485]

#Awesome S.M sir

[@prashantrai5102]

E1CB mechanism aapne video me hi bata diya aap shandar hh guruji 🛑🛑🛑

[@CHEMISTRYBYALOKSIR]

Great sir

[@anasahmad7386]

E1CB (elimination from conjugate base).

[@youthofindia4689]

Mechanism got fixed in mind in 5 min
Thank you sir
E1 CB

[@ankurjain547]

very conceptual teacher as well as question

[@himanibisht9300]

E1cb mechanism (where beta hydrogen eliminate and carboanion intermediate forms)
Thanku so much sir , i m loving and learning so much from this 5 minute chemistry series, for me Your videos are like (SUBH KI CHAY ☕) necessary 😁🤗

[@sharibathar3423]

Thank You Sir

[@srijdby2779]

nice sire
E1CB

[@AboveAverageEngineer]

3rd question was amazing 🤗

[@pallavijamdar2561]

E1CB Mechanism

[@veenuchhabra3062]

Mast q thea sahi hua

[@brahmeshgupta2707]

Answer is E1Cb mechanism sir.... Today's lecture was super awesome

[@AdarshSingh-ed6tq]

Sir bahut acche questions ..

[@shivamverma9447]

E1cb mech

[@RaviKumar-fy4rd]

Maza aa gya!!!.

[@autonomousautonomous5080]

E1CB mechanism
Dehydration reaction

[@varadarajanr8282]

E1(CB) Elimination by Conjugate Base

[@varadarajanr8282]

Best Question of the series

[@Handlename-jx4iy]

Sir hisenburg uncertainty principle pe ek video banaiye please

[@surbhilakra4745]

Very good questions sir

[@aratisarkar7348]

Mza aaya ,, sir .. 😋

[@anasahmad7386]

Respected sir,
In the (C) option, why didn't you consider forming the carbanion to the right of the diketone, it would have resulted in a 5 membered ring. Isn't that a possibility?

[@AyushKumar-hy2tv]

Possible h but vo negligible amount me hogi kyunki stability of 6 member ring jyada hoti hai 5 member ring se

[@shishirmit]

Dear Anas,
Look very carefully. The alkene is a trans Alkene. We cannot have a trans alkene in a five-member ring.

[@praveenkrmishra]

in (c) option the alpha, alpha diketo in unstable in cyclic form and its enol is about 99percentage found hence it should be in its enol form
?????

[@shishirmit]

99% is Wrong data. Moreover, it is solvent dependent. Is is not more than 20-30% at best.

[@praveenkrmishra]

sir....
please clear one more doubt that why the carbon nucleophile that is formed in the last step why that nucleophile does not attack at the other keto which is present in the cycle???

[@khushalsharma6835]

E1CB elimination via conjugate base

[@adityaraj8534]

Sir the formation of pi bond will be by E1cb mechanism

[@rishitasingh1542]

Thank u sir

[@वंदेमातरम-छ8ख]

Very helpful sir🙏🙌sir please take some lectures on surface chemistry especially chemisorption and colloids...

[@AnjaliGupta-te5gw]

E1CB Reaction
intermediate Carbenion

[@iitkop5080]

Sir i m preparing for jee adv 2020 and pls can u pls give us tips on the same, actually my chemistry is bit weaker and i literally don't want to lose easy chemistry marks from jee adv, also to improve the same I have started studying chemistry for 7 hrs a day..... Pls sir...... Waiting for your response
Regards..

[@shwetaagarwal478]

Awesome video as usual 👍

[@gbhb5399]

E1

[@anujain943]

Name of mechanism is e1cb

[@thejkarttech1660]

e1cb machanism

[@gautamchaudhary6148]

Sir in option A there is no "addition pi bond" formation taking place. There were 2 pi initially and after the reaction also there are 2 pi bonds. Then why it isnt a answer

[@anujain943]

Sir gajab Q the

[@autonomousautonomous5080]

Amazing Sir 😍

[@ankurjain547]

e1 cb mechanism

[@anuragpandey7301]

E1Cb mechanism

[@026harshagarwal9]

Best questions ever sir

[@chandan_nitk0.5k]

E1cb mechanism gurujee

[@sujatashori3790]

Last mechanism was para tautomerism

[@ajinkya2344]

If we are talking about additional pie bond .
But in A opt. Carban oxygen pie bond has broken and carbon carbon pie bond has form , hence no extra pie bond has form.
Plz. Ans 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

[@udaybhaidhadhal5090]

Question was not asking new number of pi bonds but it was asking a new type of pi bond .

[@ajinkya2344]

@@udaybhaidhadhal5090 oh !
Sir ne bolte wakt question ki baki information di hai.

[@hardikagrawal4520]

E1cb sir, ketone is electron withdrawing group , you also told in option A in this video only

[@nirajkumar20604]

Elimination rkn through conjugate base (e1cb)

[@026harshagarwal9]

E1 CB mechanism

[@PriyanshuKumar-ub4ih]

Unimolecular elimination (E1)

[@thalafan9288]

E1cb reaction

[@sachinkumar-qx8ts]

E1cb

[@tanmaykumar8347]

E1 CB

[@rahulraghavendrachoudhury9662]

E1 cb dehydration

[@yuvrajsingh-vi7ow]

E1cb mechanism(elimination

[@brahmeshgupta2707]

In B question reactant mae 3 pi bonds and in products 4 pi bonds.. A new pi bond is formed.. It shouldnt be answer sir...??

[@kamalsharma9283]

E1CB Elimination

[@ankurkumar3150]

E1cb mechanism for dehydration

[@praveenkrmishra]

I am not able to understand (c) part ......

[@VinayKumar-ye5qq]

Channel name should be-- 5 Minute chemistry- #Shishir mittal.
Edit- thanx sir for giving 💖 , I will meet u after cracking JEE

[@surendrapalsingh4442]

where is that

[@funclips2002]

answer E1CB

[@geetsagarsingh627]

wo wali step mn H2o remove ho raha hn therefore uska name DEHYDRATION hoga
also we have learnt in aldol reaction that when beta hydroxy carbonyl heated DEHYDRATION occur and forms alpha beta unsaturated alkene
am i right sir ?

[@starkidspk1263]

E1CB

[@mdataullah6878]

E1 elemination reaction

[@dharmendragupta6266]

Sir you should cover topics of ABC 1,2,3,4 like this.....

[@kushallunkad2466]

E1cb reaction mechanism

[@ShivaYadav-jc6mw]

E1 elimination and dehydration reaction

[@kushagragupta7033]

E1cB mechanism sir

[@khageshparmar2941]

Its E1cb mechanism

[@yourfriend6096]

E1CB Mechanism?

[@deepakrathore3315]

E1 elimination reaction

[@kartikeymishra3149]

ortho & para directing concept sir

[@amankumar4687]

Sir plzzz :Video on Rxn of H2O2 and O3

[@quantumclasses2282]

Good morning sir ji

[@krishnapurwar4916]

Dehydration

[@TUSHARKHANNA-pj2sw]

I was right 😁😁😁

[@Code206]

E1CB reaction because it is a two step process

[@shivangsrivastava184]

E1 cb

[@lolgamer8418]

E1cB

[@sharibathar3423]

It is E1CB

[@yashkumar-hg8lb]

present sir

[@Code206]

Aj vidio kyu ni dali sirr

[@mr.ashuanand10M]

E1cb 🙏

[@Saaraansh_10]

E1CB mechanism? ??? Last option

[@pakka_papad]

In C option why is Benzil-Benzilic acid type reaction not possible?

[@shishirmit]

Because of presence of alpha H

[@knoweverything604]

@@shishirmit Sir in c option can't we make initially a 5 memberd ring by making enolate beside the 2nd ketone and attack it at last one which is near the double bond? Please reply sir

[@shishirmit]

@@knoweverything604
Look very carefully. The alkene is a trans Alkene. We cannot have a trans alkene in a five-member ring.

[@knoweverything604]

@@shishirmit oh yes sir didn't got to that point it was great option

[@knoweverything604]

@@shishirmit thanks sir

[@shikhaagrahari1482]

Alfa , bita elimination

[@rahulraghavendrachoudhury9662]

Majaaa agya sir

[@seemasahani6615]

Gd morning sir thoda kum samche aya tha nku

[@RAHULYADAV-de3ef]

E¹ Elimination reaction

[@deepaksogarwal9781]

Good morning sir👏👏

[@varadarajanr8282]

Sir please dont use Green colour to make annotation

[@subhadeeppan5758]

E1CB mechanism...

[@baishaliagrawal7688]

E1cb elimination reaction.🙏😎😊

[@songhubnewandoldsong2224]

E1b machenism

[@BharatKumar-fd4ev]

Dehydration reaction (α-β elimination)

[@umaghosh3099]

Mechanism pucha hai rexn ka nam nahi

[@BharatKumar-fd4ev]

@@umaghosh3099 toh rxn mein jo mechanism h whi toh btaya mechanism hi toh h elimination

[@umaghosh3099]

E1CB mechanism is the ans

[@umaghosh3099]

Alpha beta elimination is the name of the rexn
That can be E1,E2 or E1CB so the ans is E1cb

[@BharatKumar-fd4ev]

@@umaghosh3099 ok

[@Deepak-ye8vt]

Beeta elimination reaction.

[@manitmishra7245]

E1cb mech.

[@abhishektomar3664]

Good morning sir

[@ajinkya2344]

Name of the mechanism may be condensation reaction

[@umaghosh3099]

Sir ans to aapne already vidio me hi bata diya hai ie E1CB mechanism

[@umaghosh3099]

Second option me

[@raviverma6958]

E1 mech..

[@anishamohapatra5817]

Where is the solution of that question link

[@divyanshuyadav7278]

It is the link bro...
th-cam.com/video/QcerFu0ZxUM/w-d-xo.html

[@pratikshamittal1783]

Vyasedification.com