Tag: Nucleophilic Elimination

Seeing the Big Picture

As the semester comes to a close, I have been reflecting on my lectures and experiences with a mechanistically organized course. The Karty text has presented many different types of reactions; from all of the reactions, I want the students to be aware of the central theme in ALL organic mechanisms. In every step, there

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Favorite First-Semester Chapter: Chapter 9

My favorite chapter to teach in first-semester organic chemistry has to be Chapter 9 (“Nucleophilic Substitution and Elimination Reactions 1”) from Karty’s text. The introductions of S­N2/E2 and SN1/E1 reactions begin in Chapters 7 and 8, respectively, but Chapter 9 puts these reactions to the test and suggests to the students that reactions do not

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Taking the Enolate off the Pedestal

I’ve noticed over the years that when I put a “name” on something, students tend to panic. We will be doing just fine with SN2 reactions, but when I suddenly name it the Williamson Ether Synthesis, my students become very concerned, as if it’s some completely different concept. Whenever I bring up the Williamson Ether

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My Most Productive Start of the Semester Ever

The first time I taught out of Joel’s text, I had no idea where I was going to put the semester break. I enjoyed how well each chapter flowed into the next, but that left me wondering where to put a five-week break. I was used to a traditional ordering of subject which resulted in

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No Longer Dreading the Second Exam

Shortly after I began teaching, when I was still using a book organized by functional group, I came to dread the second exam of the first semester. The class would typically perform decently well on the first exam, but scores would plummet on the second one. I recently looked back at my records for a

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Reasoning By Analogy

For twelve years I’ve taught organic chemistry to a mixture of chemistry and biology students. I always begin Organic I by asking my students this same question: Why are you taking this class? Some students respond that the curriculum plan for their major or career requires the organic chemistry course sequence. For other students, organic

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The Benefits of a Mechanistically Organized Book When Teaching a 2-cycle Approach

Two-cycle organic chemistry is a pedagogical approach that has gained in popularity over the last couple decades. It’s a rather simple idea: The first semester course is treated as something of a survey, dealing primarily with the fundamentals, whereas the second semester revisits many of the same topics from the first semester, but treating them

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What Reaction(s) Should Come First?