Sequence rules for R and S nomenclature

Sequence rules give the ranking order for the groups attached to chiral carbon in order to assign R or S configuration to that carbon. Mainly three sequence rules are defined to rank the groups in priority order.
0:00 Introduction
0:14 Why they are required?
0:54 Sequence rule 1
1:58 Example 2
4:50 Sequence rule 2
6:33 Example 3
8:46 Sequence rule 3
9:34 Example 5

[@chhandaniyogi4518]

Well explained... Covered every aspect of the concept

[@egpat]

Thank you...

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[@pain_is_ultimate]

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[@bashistakurmi1478]

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[@srishteeupadhyay3250]

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[@muktikantajena6402]

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[@bhavanan9237]

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[@souradeepdey1338]

Sir plz tell me if with the chiral two carbon are attached lets say c1 and c2 and in c1 there is cl,c,c,H and in c3 there is double bonded O and H when which will have higher priority c2 or c2?

[@Sana-ow9im]

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[@sumedharuddarraju2197]

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[@S.Rstudy601]

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[@RebalTitans]

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[@kaliabadakumar1716]

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[@shagunsharma5060]

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[@egpat]

It's my pleasure. Thanks for watching this video.

[@rolran8073]

Thank u sir

[@jyotijadhav4704]

Thnkzz...a lottt....well explained!

[@armstrongmukonka3379]

You did a very important work Sir for this video because it has helped me In understanding the configuration, may your hand be blessed and covered with the might hand of GOD. wish you good luck for more videos

[@egpat]

Glad to hear that. Thank you for watching.

[@aaditya.1119]

Thnq sir all clear

[@venkatramuluchiliveri4816]

Explained very well sir.....felt relaxed after the class👍

[@egpat]

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[@chalavadiguruswamy7662]

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[@duggempudivenkataramesh1931]

Best explanation, thana sir

[@mominaabbasi8224]

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[@athirasuresh3495]

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[@PradipBhandariP]

ThanK yOU

[@ravikumaruppar7064]

Super explained,cleard my doubts 👌

[@egpat]

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[@arunesh8052]

Wonderful

[@091millenniumroy6]

Thanku sir😇😇

[@stutisingh6344]

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[@egpat]

Thank you.

[@laxmisorout8044]

Nice sir

[@violinakashyap9756]

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[@egpat]

You are most welcome

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[@egpat]

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[@Abdulubaiz]

👍👍👍

[@aslamkhan6671]

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[@egpat]

You are welcome

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[@egpat]

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[@vibavnapratheeshwari3258]

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[@egpat]

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[@RahulSingh-dc8js]

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[@egpat]

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[@egpat]

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[@egpat]

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[@aadityasharma6855]

Tanku

[@Saad-xk7ki]

Doing a great job👍👍

[@egpat]

Thank you.

[@Saad-xk7ki]

@@egpat can u plz explain the difference between chiral and stereocenter with examples of aromatic compounds. There is a little bit confusion.. A humble request

[@monikajakhmola]

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[@null354]

-COOH, OH which has more priority? OH right?

[@egpat]

Exactly, -OH is given more priority than -COOH.

[@inderpreetkaur9046]

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[@egpat]

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[@geethakamath244]

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[@AdiTya-ub2cc]

Impressive... Cleared my doubt .... Thank You

[@egpat]

Glad it helped. Thanks for watching

[@smile8729]

Ex 4 ma oxygen ko 1no. milna tha na

[@egpat]

Exactly ! Oxygen is given more preference than nitrogen

[@santhoshib6734]

Lower priority group that should be placed in bottom naa

[@egpat]

It should be on the vertical line, but it will be easy to assign configuration when the lowest priority group is at the bottom.

[@san_ia]

Is example 4 wrong?cause oxygen should be given the priority

[@egpat]

Example 4 is correct. While we give ranking we have to consider the first atoms directly attached to chiral carbon. So here they are -NH2, -CH3, -COOH and H. Among these nitrogen is given preference than carbon. Now competition is in between -CH3 and -COOH. Then we have to expand the group and compare further groups attached. So, -CH3 has three hydrogens (H,H,H) whereas -COOH has three oxygens (O,O,O). Therefore -COOH is given preference than -CH3. Hope now its clear at this example. Thank you for watching this video.

[@stutisingh6344]

u from

[@san_ia]

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[@nawaznisar1265]

Thank you sir ❤️

[@aventadorgamer1575]

Very helpful

[@devanandularakeshpatel3588]

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[@Thestrangestmath]

Thank you sir

[@egpat]

You are welcome !!