Comments on: Introduction to Assigning (R) and (S): The Cahn-Ingold-Prelog Rules https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/ Sat, 18 Apr 2026 02:06:05 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: James Ashenhurst https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-720337 Wed, 18 Dec 2024 15:42:16 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-720337 In reply to Abdul Bassit.

I’ve tried to make it as clear as I can. Take 5 minutes and practice with an example where you know the correct stereochemistry (R/S) and try doing both of those methods for yourself to see what works.

]]> By: Abdul Bassit https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-720274 Wed, 18 Dec 2024 04:20:46 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-720274 in heading (5. Determining R/S When The #4 Group Is In The Plane Of The Page?) you said we do single swap if the lowest priority group comes on the plane of paper and then we will have to flip the result also, but some websites says when you do single swap for the lowest priority group on the plane you do not need to flip the Result ,like you said.
sir plz make it clear i am very confused

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-674630 Mon, 16 Oct 2023 14:39:12 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-674630 In reply to FKorir.

Yes! The dashed hydrogen is implied!

]]> By: FKorir https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-674580 Sun, 15 Oct 2023 16:45:11 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-674580 In a chiral molecule, two groups are attached to it with the normal line bond ,the third is shown through a wedge and hydrogen is not shown..can I conclude that the hydrogen is a dash ?

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-644294 Wed, 14 Dec 2022 03:49:16 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-644294 In reply to James R Wilson.

Glad you found it useful James!

]]> By: James R Wilson https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-644231 Tue, 13 Dec 2022 05:45:14 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-644231 Thanks. Move the dots. Could not find this before.

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-634609 Thu, 04 Aug 2022 18:31:57 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-634609 In reply to Ajay Ramaseshan.

Most people don’t learn chirality until 2nd year university in north america, so you are ahead of the curve

]]> By: Ajay Ramaseshan https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-634580 Thu, 04 Aug 2022 06:52:16 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-634580 During my studies for 11th grade and 12th grade, we had a brilliant Organic Chemistry teacher who taught the concepts beautifully. In addition, I had a passion (more of a “study crush”) on Chemistry in general and Organic Chemistry in particular. To such an extent that this topic of R and S enantiomers is still ingrained in memory. Though I am in a completely different area now of Machine Learning and Analytics in the Healthcare space in Industry, primarily a Software Engg job. Out of sheer curiosity, I googled “Chirality Detection Machine Learning” and voila !! such cool, intereesting papers I came across where they combine Bayesian Learning and Convolutional Neural Networks (Advanced ML Theory) to detect chirality in Nanoparticles. So application of ML in cutting edge Physics. Amazing stuff :!

]]> By: Arvind kumar https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-585565 Fri, 02 Oct 2020 10:39:10 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-585565 I just only want to know the CIP system of Nomenclature

]]> By: Tanay Saraswat https://www.masterorganicchemistry.com/2016/10/20/introduction-to-assigning-r-and-s-the-cahn-ingold-prelog-rules/#comment-584562 Thu, 03 Sep 2020 07:08:33 +0000 https://www.masterorganicchemistry.com/?p=10198#comment-584562 🔥 The best content of organic chem I could get in such an incredible way]]> Man this website proved to be a boon for me in quarantine…keep it up🔥🔥 The best content of organic chem I could get in such an incredible way

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