Super Techniques for SN1 Reactions | Super Concept and Explanation | Jee Mains, Advanced| NEET AIIMS

Hello Guys, In this Lecture, we are going to discuss a very important topic from Organic reaction Mechanism- SN1 for Jee Mains, Advanced , NEET and AIIMS.
A nucleophilic substitution reaction that occurs by an SN1 mechanism proceeds in two steps. In the first step, the bond between the carbon atom and the leaving group breaks to produce a carbocation and, most commonly, an anionic leaving group. In the second step, the carbocation reacts with the nucleophile to form the substitution product.
The formation of a carbocation is the slow, or rate-determining, step. The subsequent step, formation of a bond between the nucleophile and the carbocation, occurs very rapidly. Because the slow step of the reaction involves only the substrate, the reaction is unimolecular.Because only the substrate is present in the transition state, the rate of the reaction depends only on its concentration, and not on the concentration of the nucleophile.
Figure 7.3 shows an energy diagram tracing the progress of a reaction that occurs by an SN1 mechanism. The rate of the reaction reflects the activation energy required to form the carbocation intermediate. The activation energy required for step 2, addition of the nucleophile to the carbocation, is much smaller, so step 2 is very fast. The rate of step 2 has no effect on the overall rate of the reaction.
The rates of SN1 reactions decrease in the order 3° 2° 1°, which is the reverse of the order observed in SN2 reactions. The relative reactivity of haloalkanes in SN1 reactions corresponds to the relative stability of carbocation intermediates that form during the reaction. We recall from Chapter 4 that the order of stability of carbocations is tertiary secondary primary. A tertiary carbocation forms faster than a less stable secondary carbocation, which in turn forms very much faster than a highly unstable primary carbocation. However, SN1 mechanisms are also favored by resonance-stabilized primary carbocations such as benzyl and allyl.
In contrast to SN2 reactions at stereogenic centers, which occur with inversion of configuration, an SN1 reaction gives a racemic mixture of enantiomers that has no optical rotation. For example, (S)-3-bromo-3-methylhexane reacts with water to give a racemic mixture of 3-methyl-3-hexanols. The reaction occurs via an achiral carbocation intermediate with a plane of symmetry (Figure 7.4). The carbocation intermediate’s plane of symmetry allows the nucleophile to attack equally well from either side. The product is then a racemic mixture of enantiomers. Thus, a chiral substrate loses chirality in a reaction that occurs by an SN1 mechanism.
--------------------------------------
Mesomeric Effect in Organic Chemistry
• Mesomeric Effect in Or...
General organic chemistry
• Carbocations and Carba...
Which is more stable tertiary carbocation with 9 alpha H or benzyl carbocation?
• Which is more stable t...
Sodium Borohydride in Organic chemistry
• Sodium Borohydride in ...
LiAlH4 in One Shot
• LiAlH4 in One Shot | C...
DIBAL_H in organic chemistry
• DIBAL-H in Organic Che...
We hope this would be very benificial for you guys.
Thanks
Keep Sharing….Keep Supporting!!!!
MKA Sir

[@harshvardhansingh8941]

Last year I followed your video lectures and today I am studying in IIT ROORKEE

[@IITianexplains]

That's wonderful.... god bless you Keep moving forward.😊

[@harshvardhansingh8941]

@@IITianexplains It's all because of your blessings sir. I made you my idol.

[@IITianexplains]

Now, its your responsibility to promote our channel to guide our juniors. And all the best for your future goals.😊

[@harshvardhansingh8941]

@@IITianexplains Surely sir

[@venge7077]

@@harshvardhansingh8941 which branch

[@divakarsharma3300]

why sorry sir you always make us proud that we r your students and not just learn but experience the beauty😊😍 of chemistry 😊

[@IITianexplains]

Thank you All of your love and comment means a lot...keep supporting us☺

[@ranjeetkumar1973]

i whole heartedly agree with you!

[@Bansss664]

Sir doing comment from othr acc ......khel gyeeee 🤣🤣

[@nqtrading]

Nothing is precious than this video notification. Everytime we get video from you we know it's one more step towards the perfection in the topic.plz don't feel sorry, you are doing great work. MKA sir😎🤗

[@IITianexplains]

Thank you It means a lot...all the comment and love Keep supporting us!

[@hasibkhan4481]

I was very eagarly waiting for your video....my chemistry is incomplete without your videos. 😀😍😍

[@IITianexplains]

Thank you for all of your love and support.😊 Keep supporting us.

[@hasibkhan4481]

@@IITianexplains ....welcome sir and thanks for the video😘👍🏼

[@tanmaysarkar8384]

Good Morning and Welcome back. No-one is like you. You are the Best. 🔥

[@IITianexplains]

Thank you so much.! Keep supporting us☺

[@GauravKumar-mv8qc]

i want to admit that i learned all concepts of organic and inorganic chemistry from you and today im in iit bhu cse all credit for my chemistry goes to mka sir.I want to recommend juniors that please stick to his channel and see all his videos as in every videos there are lot of concepts which you were not told im ur coaching institutes (as in my case)sir's organic and inorganic chemistry boosters arr just awesome no one can match the level of sir .Though i have cleared iit yet i have subscribed sir's channel bcz i feel very happy whenever sir upload videos .(I can assure you110% that the concepts sir taught is more than sufficient for jee adv you can solve 40 years to see that)Thanks a lot sir . Whenever you visit vns please tell me sir i will be eager to meet you .

[@subodhpatel4417]

Happy to See you again Sir B coz of u i could improve My chemistry Prepration much . And I have got a seat in NIT this year. IITian explain is realy a Good Platform and it is going to be the best in Future. Thanku so much again.

[@IITianexplains]

God bless you with your future goals...work hard and keep moving forward😊

[@subodhpatel4417]

@@IITianexplains Thanku sir

[@9829manoj]

The god of chemistry is back.................

[@UCSAdityaKumarChoudhury]

Sir ek video plz buffer solution or iska applications ke upar bana do ionic is a tough topic but your teaching makes them very easy I recently watched the Grahams law of diffusion topic from ur channel and then solved almost 95% of the questions from my material thanks, sir

[@dsharma4520]

Ohh np sir thank god u re here for us and to make us iitians😍😃

[@abhishekkalshan4654]

Notification brought both smile and anger on my face.... It is very very late.... . But sir no sorry plzz😋

[@naveenraaz316]

Was eagerly waiting for ur vedio

[@IITianexplains]

Keep loving and supporting us😊

[@ashsoni1309]

Sir please complete all organic chapters for aiims and advanced

[@gamergenix5355]

Sir aapko dekh kar bahut accha laga

[@IITianexplains]

Keep loving and supporting us😊

[@naveenraaz316]

Koi nii...sirr... uuh are great paaji

[@itsvishal2980]

Sir ur videos are always awesome.... Definitely i will score full in chem whether it is Mains or Adv Just make such more videos plz 🙏🙏🙏🙏💝💝💝💝❤❤❤

[@kasaudhanprincee1086]

Sir u r my inspiration so please do'nt become so late for next video love u sir 🙏🙏💗💗God bless u, u are my rockstar

[@IITianexplains]

Thank you for all of your love and support....keep supporting us.

[@vijaykrishna2128]

my fav moment-intro part with observations. and catalysis part...addicted to ur videos...

[@xyzy447]

Thanks sirji 💞🌹🌹.I was waiting so eagerly

[@Shruti-bf7so]

Please make a video on SN2 reaction also😄

[@mayurgangurde1237]

Great explanation

[@sanjeevmahajan5130]

i m a medical student .........i follow you always ....yu teach too authentically sir

[@gamergenix5355]

Sir please make a full concept video on grignard reagent Cannizaro reaction Aldol condensation

[@IITianexplains]

Yes..Sure. We have noted your request.

[@Saisai-uh8do]

Cannizaro and Aldol condensetion detailed videos are already given by MKA sir

[@gamergenix5355]

@@Saisai-uh8do that were for questions I want on concept

[@Saisai-uh8do]

@@gamergenix5355 ohhh. Ok

[@tusharmaurya3173]

pls upload video regularly

[@itsanshpandey]

Pranam sir.... Studying chemistry with you since 2017😊

[@IITianexplains]

Thank you so much! Keep loving us keep supporting us.

[@nehabookiology1415]

Happy to see u back🤗🤗 Plz Don't say sry sir🙃🙏 Thankyou Thankyou soooooooooo much sir 😇🙏🙏😊 Feeling very happy ...☺

[@9829manoj]

Hey you leave MADE EJee Chemistry Channel

[@nehabookiology1415]

@@9829manoj nope😊 I am still their

[@IITianexplains]

Thank you! Keep supporting us.... that's all we need!

[@rishabhkaushik9360]

@@nehabookiology1415 aap yha bhi ho madam apko btade hm ab aap chemistry k ever best channel tk pohoch chuki ho welcome here sr is my idol or tell me u have take drop or not

[@adnann5232]

Mast Guruji 😁💜

[@aryaksinghchauhan]

After long time you make me happy sir 😊😊😆

[@IITianexplains]

😊keep loving and supporting us..!

[@hardevprasadkudi8338]

sir apke knowledge must hai

[@siddhantved505]

Sir i welcome again to you come with super cool super awesome lecture i liked your video no of phone present in my home that is 3 thankyou sir

[@ameya7233]

19:57 WOW BLEW MY MIND!!

[@9yearsand369]

42:38 I think I was amazing fact that in one degree carbon sustrate could also give SN1, whole lacture is amazing I never felt bored 😊😊😊

[@SAI-qn6qe]

You may make delay but your work make us delight

[@Aman-gmix-hg9uv]

Sir aap bahut badhiya padhate hain

[@lucky-ke8hz]

Apkii sri organic ki vedios upload kro sir .........plsss sir its request😁😁😁😁😁😁😁😁

[@sartajkhan7966]

We are following u sir from pakistan..................thanks

[@malleshaiahveeranna2659]

Sir doubt pls replyplzz Can a tertiary alkyl halide undergo wurtz rxn

[@RakeshKumar-he9qg]

Sir please make video on Ei elimination ..please🙏🙏🙏🙏🙏🙏🙏🙏

[@ashique04]

Thanks Sir

[@nqtrading]

Sir, you are the only hope for chemistry for all of us. So we all really need you........

[@IITianexplains]

Thank you Keep supporting us...

[@pasapulasurya3252]

SHARE IF U LOVE IT LIKE IF U LIKE IT

[@himanshu3841]

Sir plz videos on full chapter

[@Hell829]

No sorry sir ..your effort always a great for us 🤗😊😊 Thank you sir😊

[@IITianexplains]

Thank very much Keep loving and supporting us.

[@ud_rag]

thanks a lot sir. I was really confused but all my doubts got cleared and I feel confident regarding SN1 rxn!

[@ashmitpandey2150]

Real heros of india

[@asljagannadh_1010]

sir u made me fell in love with chemistry all your videos are awesome thank you sir

[@satyamkumar6350]

Catalysis wala concept mera favourite tha

[@Shivansh0264]

Very few teachers tell sn1 reaction is reversible reaction and rate expression (true) you are gem of oc sirbo

[@srinivaspandey2316]

Sir please optical isomerism pe bhi video banaiye naa. Tou are awesome sir, aap bahut hi ache se samjhare hai aur bahut chhote chote concepts clear ho jaate hai...

[@nj717]

Last part of catalysis is awesome!! Thanks sir

[@subhradipmalakar134]

Osm sir

[@poojatr824]

Tysm sir

[@muhammadmajeed2607]

Great teaching.. love from pakistan :)

[@kruthikpimpre5921]

Thank You Sir. Kindness appreciated :)

[@IITianexplains]

😊keep loving and keep supporting us..!

[@studywithattitude7522]

Sir apka video dekne k bad inorganic asan lagne laga...thanks sir...ek bat ki ap phosphorus oxoacids ko pada dijiyeb please......

[@aritrasaha3938]

Only channel where I don't speed up the video...

[@shashikala7896]

Sir ur explanations are very good and for 1second also I did not lost my concentration because of ur coaching thank u sir

[@teerthsunilbhave611]

Ty sir. Best as always. 😀

[@9829manoj]

One video on Bredt's rule

[@shriprakashupadhyay4450]

Sir electrochemistry ke toughest qns karwa dijie ...usse ionic thermo ke bhi concepts clear hoeyenge...ek video se 3 chapter ki revision ho jayegi . Love you sir

[@tejas4110]

Sir please make a video on sn2 as well..

[@savitathorat9772]

Thanks sir u made my understanding in chemistry better

[@himanshu3841]

Sir we need your detail explanation . Keep uploading regularly

[@ayushaher5646]

nice video

[@kaushalsehgal2475]

please make video on Dibasic acids And soft and hard acids and base:

[@BrijeshKumar-xs7sf]

Very good explanation

[@pewdiepie4810]

If along with cold water a good nu- is taken and the substrate is 3 degree then it will be sn2 or sn1 as nu- has tendency to do sn2...

[@ziaudin1260]

Nice brother

[@rvvyas4460]

Thank you so much sir

[@DeepakPatel-ep8jt]

Wonderful

[@tarasahu3687]

Thank u so much Sir...

[@umasrivastava4142]

sir please make a vdo on optical isomerism

[@shivampandit1321]

Please sir complete full chapter haloalkane and haloarene

[@humblestudent218]

Sir can B2H6 / H2O reduce cyclic esters ? Sir I have huge doubt regarding reduction by B2H6 . LiAlH4 , NaBH4 are now crystal clear but there is not much information about B2H6

[@devkumar9889]

B2H6 is not preferred for Esters

[@dvkreddychem]

Prepare lecture on special case of 1S order reaction

[@ashishkishnawat1204]

I am big fan of you sir🙏🙏🙏🙏🙏a person with super brain🙏🙏🙏🙏 Keep helping us sir Thank you🙏

[@omkarbagal4393]

Sir please make video on very important name reaction

[@aaditkedia2788]

Understood everything you said sir thanks a lot!

[@GauravYadav-eq1xu]

Thank u so much Sir...😄😄

[@MaanSingh-lx6pw]

Thanku so much...

[@swaggirl9927]

Superv sir jii

[@gsgamingandedits1521]

Sir your concept are mind blowing😍 Thank you so much sir ji

[@subhroHalder427]

Pranam guruji🎈❤️🧪,mere endsem mai sn1/sn2 reaction hai isliye revise krne keliye ageya apke lecture se:)😗

[@KrishnaThakur-nf4rt]

Sn 2 kaha hai?

[@sagarbhowmick7274]

Very helpful

[@syeda9374]

Asalam alaikum sir Feeling blessed

[@-xv5im]

Guruji jee 2022 ka dropper batch for iit jee on unacademy plus per lb Start hoga??????🙏🙏

[@sakethkumarthati2737]

Sir make a video on SN2 Your teaching is amazing

[@Prada6404]

Pls make video on Lucas reagent

[@anfalsajid1754]

Owesm...👍

[@aayushichoudhary5540]

Intejaar ka fal aj mil gya sir bht sweet 😍😍 n no sorry

[@bidisharajbongshi9462]

Sir app video may kaunsa chalk use krte ho pls reply

[@IITianexplains]

Normal Chalks DOMS ya Apsara wali.

[@bidisharajbongshi9462]

@@IITianexplains thanks sir for ur kind reply..N salute to u for ur noble work!

[@PriyaGupta-me2zs]

Sir plz upload video on sn2 also

[@santoshkumarmohapatra1090]

Sir ap ki full-time course online kahan milegi..... Pls boldijiye.....main admission hona chahta hun pls sir.... U r the best ever chemistry teacher sir🙏🙏

[@momin5118]

Sir please share the names of your books and links to buy them😍😍 Guys... like if you agree, so that MKA Sir notices this...

[@umasrivastava4142]

thank you so much sir for your help:)

[@umasrivastava4142]

sir please make a vdo on optical isomerism

[@malikmurtaza4828]

Your lectures are superb sir

[@anfalsajid1754]

Whenever I need deep concpt I search ur vedios💗

[@c.prakshsachan2350]

Topics are well explained If time duration can be less then it will be good to increase number of views

[@kantadarra9199]

sir plz advice me to how to score good marks in my coaching tests please sir

[@IITianexplains]

Practice more and more. Revise regularly.

[@kantadarra9199]

Thank u sir

[@rishabhmaurya5439]

Really good explained sir , Sir please go for E1 E2 Beta