Thanks a lot. I had so much trouble solving MS chouhan book for organic chemistry just because I couldn't understand how to convert newmann to fischer, but now its all clear. tysm.
I tried so hard to learn Newman/Fischer Projections and just couldn't understand them. I'm glad I discovered your videos - you have a unique gift of teaching!
I took Ochem during the 2014-2015 school year and now im reviewing for the MCAT. youre videos are very clear and very helpful! i feel like i just took this class last semester!
The only problem is that you would no longer have the carbon backbone of this molecule translating into the vertical line of the Fischer projection. It is traditional that the carbons should appear along the vertical, while other atoms like oxygen and halogens should appear along a horizontal line. It’s always best to rotate your Newman projection so that any carbons in back or front are moved to an eclipsed, downward position before beginning the conversion to a Fischer projection. Thanks for watching and commenting!
@@Leah4sciMCAT if two carbons are at 60 degree and i rotate them 60degree so as they get same vertical backbone, would there be any change of activity of the compound I mean by saying above that would they become diastereomers I mean to say Let us suppose that two carbon along which newmann projection is there, take the behind one as 2 and front one as 3 in newmann as 2 is hiding behind 3 Now suppose the two methyls over 2 and 3 have angle of 60 degree and consider 2 and 3 chiral And 2 has optical active state R type and 3 is S type if i rotate 3 by 60 degree in such a way that both the methyls cannot be seen togethor I mean methyl at 2 hides behind methyl at 3 And 2 is still R as we have not rotated it and i want to ask if three still remain S on 60 degree rotation or not or i think 3 may also convert to R and the initial compound before rotation and final one become diastereomers of each other as initially it was RS and final is RR Or 60 degree rotation does not change activity parametres like R to S or S to R?...
If one conformational isomer is chiral then will all conformational isomer be chiral. Example if there is a long compound with many bonds and it rotates light by 4 in one gauche structure then will it still rotate light in anti structure. If there is one compound whose mirrior image can be superimposed on it in conformation then can it's mirrior image be superimosed on it in all conformations.
Thanks for watching and commenting! Yes, if one conformational isomer is chiral, all will be chiral. Rotating around the single bond does not change the chirality (or the R/S configuration) of the carbon itself.
I'm unsure of what you're asking. Since I don't offer tutoring over social media, to get help with questions like this and more, I recommend joining the MCAT Study Hall. For more details, visit join.mcatstudyhall.com/ or contact me through my website leah4sci.com/contact/
Rotating it only 60 degrees would eclipse the Br with the OH group. However, it would not eclipse our methyl group with the main carbon chain that is supposed to make up our vertical line in the Fischer projection. Our carbon backbone should always be eclipsed as we convert from Newman to Fischer.
Great question! Transforming the Newman projection to a fully eclipsed conformation is the easiest way to view the molecule in the correct fashion for a Fischer projection. As you get faster and more efficient at drawing Fischer projections, you might be able to do so without completing the transformation to an eclipsed Newman.
Thanks for the tutorial, it was helpful! btw, Can i have a copy of your ebook, miss? i cant seem to access the link, it was forbidden or expired, I think. Thank you!
In a Fischer projection, the horizontal lines represent the groups that are pointing towards the viewer, and the vertical lines represent the groups that are pointing away from the viewer. By convention, we usually depict the carbon chain vertically. Hope that clears it up for you!
I'm unsure of what you're asking. It's a little more complicated than a syn/anti relationship. That's why I created full length series on both Fischer and Newman projections. For more, visit Leah4sci.com/fischer or Leah4sci.com/newman
good evening I hope you are well first of all thank you for your video you explain very well but the problem is that you mixed up the orientation of fisher please see it again thank you ✨️
Thanks a lot for these videos! I was having a lot of trouble with Organic Chemistry (for JEE) and everytime I google a topic your videos come up!
Happy to help! I'm so glad my resources are helping you!
This is the fisrt time I comment on TH-cam. Thank you so much. Now I understand how to convert Newman to Fisher
Glad I could help! And that it was great enough for your first TH-cam comment!
Thanks a lot. I had so much trouble solving MS chouhan book for organic chemistry just because I couldn't understand how to convert newmann to fischer, but now its all clear. tysm.
You are most welcome, I'm so glad to help clear things up for you!
I tried so hard to learn Newman/Fischer Projections and just couldn't understand them. I'm glad I discovered your videos - you have a unique gift of teaching!
Happy to help and if you need more, check out leah4sci.com/syllabus to match up my resources with what you're studying!
thanks a lot, before watching it I was under serious headache about this conversion, but now everything is crystal clear to me
So glad it helped and hopefully no more headaches!
Thank you so much ! I'm french, and the way you explain it is so easy to understand! Even better than french classes XD
Happy to hear that! You're so welcome.
I took Ochem during the 2014-2015 school year and now im reviewing for the MCAT. youre videos are very clear and very helpful! i feel like i just took this class last semester!
I'm glad the videos help!
Life-saver!!I have been struggling for days in this
Happy to help!
Thank u very much... I was searching for this topic explanation in various websites books.but at last I cleared this concept from your lecture.....
You are very welcome!
You definitely know how to make complicated things look easy.
Time Saving and effective🙏
You're so very welcome, happy to share!
Thank you so much... before watching this I was scared of this topic...but I guess now I can try these convertions...
Glad you aren't scared of it anymore :)
YOUR A LIFESAVER!!😭😭
Aww, so happy to help!
Thank you so much, going to have Jee advanced 2022 in 10days your video cleared my doubt
You're welcome, hope it went well for you!
What to say.... this concept is quite a tricky but u are
AMAZING
Always in love 💕 with my fav educator
Glad I could help!
that was easier than i thought
thanks for the great explaination
Glad it helped, and you're welcome!
Thanks! The Fischer videos were very helpful!
you're welcome, glad you liked it!
Thank you so much. Really helped me!
You're so very welcome!
If i rotate 60 degree rathar than 180 degree to form partially eclipsed than i frame it on fischer will it be right ?...
The only problem is that you would no longer have the carbon backbone of this molecule translating into the vertical line of the Fischer projection. It is traditional that the carbons should appear along the vertical, while other atoms like oxygen and halogens should appear along a horizontal line. It’s always best to rotate your Newman projection so that any carbons in back or front are moved to an eclipsed, downward position before beginning the conversion to a Fischer projection. Thanks for watching and commenting!
@@Leah4sciMCAT if two carbons are at 60 degree and i rotate them 60degree so as they get same vertical backbone, would there be any change of activity of the compound
I mean by saying above that would they become diastereomers
I mean to say
Let us suppose that two carbon along which newmann projection is there, take the behind one as 2 and front one as 3 in newmann as 2 is hiding behind 3
Now suppose the two methyls over 2 and 3 have angle of 60 degree and consider 2 and 3 chiral
And 2 has optical active state R type and 3 is S type if i rotate 3 by 60 degree in such a way that both the methyls cannot be seen togethor
I mean methyl at 2 hides behind methyl at 3
And 2 is still R as we have not rotated it and i want to ask if three still remain S on 60 degree rotation or not or i think 3 may also convert to R and the initial compound before rotation and final one become diastereomers of each other as initially it was RS and final is RR
Or 60 degree rotation does not change activity parametres like R to S or S to R?...
@@Leah4sciMCAT Yeah i want to ask same question?
Thanks tomorrow I have organic chemistry exam
And it helps me to get rid of few confusions and consistent mistakes that I doing✌️✌️🤗🤗
I'm glad it helped! How did your exam turn out?
Useful for JEE Organic !
Glad to hear it!
you help me a lot thank you soooooooo much 🥰 I'm lucky to find you
You’re so welcome 😊
Thanks a lot for this video... It really helps me very much to remove my confusions.... Thanks once again..
Glad the video helped! You're welcome.
You are awesome
It helped me a lot
Thank god for making you on my suggestion list 😊😊😊😊😊
So nice of you! Glad it helped!
Thank you so much.This video is really helping me in understanding fischer projections
I'm glad you have found it helpful
Thank you mam, your videos help me a lot in preparing for my class 12th exams!
Glad to hear that!
It's a really helpful video..... Thanks for this perfect explanation
You're welcome! Glad it was helpful!
Very helpful for NEET Exam. Thank u so much!
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All the best bro i'm preparing for jee 22
Thanks a lot, very easily clear my doubts
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Thanku so much. This one literally helped 🥺
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Thanks!!! That was really helpful
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I will grateful to you
You're welcome!
If one conformational isomer is chiral then will all conformational isomer be chiral.
Example
if there is a long compound with many bonds and it rotates light by 4 in one gauche structure then will it still rotate light in anti structure.
If there is one compound whose mirrior image can be superimposed on it in conformation then can it's mirrior image be superimosed on it in all conformations.
Thanks for watching and commenting!
Yes, if one conformational isomer is chiral, all will be chiral. Rotating around the single bond does not change the chirality (or the R/S configuration) of the carbon itself.
You may just have the cutest voice I have ever heard
Aww thanks!
Thank you it was so helpful ❤
You’re welcome 😊
Thank you , LOve from India
You're very welcome!
Mam what if the carbon present in the place of OH or H so we have to rotate 120 or still 180
I'm unsure of what you're asking. Since I don't offer tutoring over social media, to get help with questions like this and more, I recommend joining the MCAT Study Hall. For more details, visit join.mcatstudyhall.com/ or contact me through my website leah4sci.com/contact/
3:42 Why we rotated it 180 degree if we just place br behind oh by doing a 60 degree rotation, we will get the exlipsed form.
Same doubt buddy 🥲
Rotating it only 60 degrees would eclipse the Br with the OH group. However, it would not eclipse our methyl group with the main carbon chain that is supposed to make up our vertical line in the Fischer projection. Our carbon backbone should always be eclipsed as we convert from Newman to Fischer.
@@Leah4sciMCATis it because the dihedral angles are different for different group,?
@@supra1313did you get this.
@@letitbe2118 no 🥲🥲
Thanks Leah this is very helpful
You're very welcome!
That was great 😊 I finally understood that lecture 😂
Happy to help!
Thanks for the video, so clearly explained, really helpful
You are very welcome!
Hey is it necessary that we make fully eclipsed from staggered to make Fischer. Can we make Fischer out of partially eclipsed too??
Great question! Transforming the Newman projection to a fully eclipsed conformation is the easiest way to view the molecule in the correct fashion for a Fischer projection. As you get faster and more efficient at drawing Fischer projections, you might be able to do so without completing the transformation to an eclipsed Newman.
Thanks for the tutorial, it was helpful! btw, Can i have a copy of your ebook, miss? i cant seem to access the link, it was forbidden or expired, I think. Thank you!
Thanks for bringing this to my attention! That was an older book, but now I have the improved Ultimate MCAT Prep Guide: leah4sci.com/ultimate
you saved my life thank you
literally? Lol you're very welcome
Thnk you very much this is very helpful for me becoz I am very confused in this conversions
Glad I could help!
Very very helpful ma'am....
It's my pleasure
Perfect on point
Thanks
You’re welcome 😊
Thanks a lot. It helped me very much.
You're so very welcome!
Thank you! Very well explained! 🤗🥇
You're very welcome!
I drew it where the front carbon was ch3, cl, H. Is this wrong?
No, you've drawn the same molecule that I have except that you've rotated it by 180 degrees in space. That is fine.
But how do we know which one is on the vertical line when converting?
In a Fischer projection, the horizontal lines represent the groups that are pointing towards the viewer, and the vertical lines represent the groups that are pointing away from the viewer. By convention, we usually depict the carbon chain vertically. Hope that clears it up for you!
Thanks ❤
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That's amazing! Thanks a lot😘😘😘
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thx it helped a lot
You're welcome
wow. i want to cry thank youu
You're welcome 😊 but don't cry!
So every Fischer projection is an anti Newman projection and syn clinal Sawhorse projection...Am i correct ma'm.?
I'm unsure of what you're asking. It's a little more complicated than a syn/anti relationship. That's why I created full length series on both Fischer and Newman projections. For more, visit Leah4sci.com/fischer or Leah4sci.com/newman
That was Amazing :))
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Thanks
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Thanx a lot ! it cleared my doubts! :D
+Kumar Raju you're welcome
really helpful videos
Thanks! :)
Thanks you very must , i understand the video although i don't know english
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So helpful thank you!
+Olivia Cory you're very welcome
Thank you so much!!!
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Really helpful
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good evening I hope you are well first of all thank you for your video you explain very well but the problem is that you mixed up the orientation of fisher please see it again thank you ✨️
Thanks for letting me know. Which specific Fischer? (at which point in the video?)
Thanks a lot!
You're welcome!
wonderful video..!!!
I'm glad you liked it!
thank you so much
you're welcome! :)
Thanks.
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fantastic.
Glad you liked it!
Nice dear
Thank you 😊
thankyou :) nice vidio !
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thank you.
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omg I finally understand this! so I'm not a dumbass after all
Of course you're not! I'm so glad my video helped you understand.
thank u super
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Great
Glad you liked it
Nice
Thanks
Great video! You kinda sound like Zooey Deschanel xD
Thank you
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✌
:)
What is your name
Leah
@@Leah4sciMCAT from which country you are
Tan q mam
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