chirality

Assigning R/S To Newman Projections (And Converting Newman To Line Diagrams)

Assigning R/S To Newman Projections (And Converting Newman To Line Diagrams)

February 1, 2017

This post was co-authored with Matt Pierce of Organic Chemistry Solutions.  Ask Matt about scheduling an online tutoring session here. In two recent posts we discussed how to assign (R/S) to configurations of chir…

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Determining R/S (2) – The Method of Dots

Determining R/S (2) – The Method of Dots

January 17, 2017

This post was co-authored with Matt Pierce of Organic Chemistry Solutions.  Ask Matt about scheduling an online tutoring session here. In our first post on the Cahn-Ingold-Prelog (CIP) Rules, we gave a broad overv…

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Chiral Allenes And Chiral Axes

Chiral Allenes And Chiral Axes

January 13, 2015

We’ve met alkenes before – right? Just in case you haven’t, let’s review the basics, because today’s post is going to depend on understanding a few of the most important concepts. Alkenes…

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Khan Academy for Organic Chemistry – 3

Khan Academy for Organic Chemistry – 3

October 1, 2012

For the previous videos in this series, see Part 1 and Part 2 In this segment we’ll walk through videos 27-37 of Khan Academy for organic chemistry, covering mostly substitution reactions. Video #27: Introductio…

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Khan Academy for Organic Chemistry – Part 2

Khan Academy for Organic Chemistry – Part 2

September 21, 2012

Khan Academy for Organic Chemistry, Part 2: Bonding, Conformations, and Stereochemistry This second  installment of the guide to Khan Academy organic chemistry videos covers videos 13 to 26, covering the topics of ch…

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What’s a Racemic Mixture?

What’s a Racemic Mixture?

May 23, 2012

What do you notice about these three pictures? Count the number of left gloves and right gloves.  6 left and 6 right gloves, correct? What about this one: I count 8 right gloves, 4 left gloves. So there’s a sli…

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On Cats, Part 6: Stereocenters

On Cats, Part 6: Stereocenters

December 15, 2010

Let’s recap what we’ve talked about so far. Sawhorse cat and Freaky Sawhorse cat are constitutional isocats. But Freaky Sawhorse Cat has a mirror image of himself crawling around somewhere – a cat t…

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