More R,S practice | Stereochemistry | Organic chemistry | Khan Academy

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How to assign configurations to a molecule with two chirality centers.

Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules!

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This video still saving lives in 2018. Thank you so much.

aaliyathorpe
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No one is teaching these high concepts on YouTube.

Thanks, you really helped

drujjawalrathore
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Thank you very much I really appreciate your efforts.

xnemer
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I have found that if you don't rotate the molecule so that hydrogen is pointed to the back, and just determine priorities, and get either R or S, the correct answer is the opposite. For instance: I determined the S config of the third carbon by just determining the config of this carbon without rotating, which gave me R. So that means the correct answer is S. I haven't found an example for which this doesn't work, so please let me know if I'm wrong. Sorry if I butchered the explanation.

Obi_Kenooby
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help in vitamins structure eluciadation

monikatiwari
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What will be R/S Configuration of but-2-ene in cisform ?

adityachoudhary
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Hej Khan

at 1.07 you draw a hydrogen that points towards os (downwards). My question is that why couldnt you draw the hydrygen upwards while its still pointing towards us?

abbassudi
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Sir but why do we need the hydrogen to move away in space?

adityamahesh
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At 5.55 why axis symmetry include ????

vidhyaar
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questions, does that trick at the end work across the board? Thank you!

gayatribhagwat
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I really don't get why he writes CH3 as H3C

mythic