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Introduction to organic chemistry. Topics include acid/base chemistry, conformational analysis, stereoisomers, thermodynamics and kinetics, aromaticity and resonance, and multistep synthesis as well as the nomenclature, structure, reactivity, and mechanisms of alkenes, alkynes, and alkyl halides. Reaction mechanisms include electrophilic addition, substitution, and elimination reactions.

Prerequisites: Chemistry 1C or 2C or 3C with a minimum grade of C-; or Chemistry 1B or 2B or 3B with a minimum grade of B-.

4

Units

Optional

Grading

1, 2, 3

Passtime

None

Level Limit

Letters and science

College
Unlocks CHEM 132 BIOE 243 CHEM 6AL CHEM 6BH CHEM 6BL CHEM 109B
LEWIS R B
Robert Lewis
4.4
117 reviews
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Winter 2024 . Lewis R B
CHEM 1179
M W F
15:00 PM - 15:50 PM
Fall 2024 . Lewis R B
BRDA 1610
M W F
13:00 PM - 13:50 PM
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CHEM 109A Lewis R B Winter 2025 Total: 162
CHEM 109A Lewis R B Fall 2024 Total: 270
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117
4.4
CHEM109ABC . Lewis R B 5 Months Ago

ochem is hard, but lewis is goated

0 helpful 0 unhelpful
CHEM109ABC . Lewis R B 5 Months Ago

Although this class was very hard, Lewis is the best teacher I've had at UCSB. It feels like he actually cares about the success of his students, and people only rank him badly because they don't know the difference between a hard professor and a hard class. Don't expect a curve unless you're taking the class a quarter late!

0 helpful 0 unhelpful
CHEM109ABC . Lewis R B 7 Months Ago

Genuinely everyone I talked to either failed the class, or had no idea what was going on. The curve was insane (I went from a C- to a B+). IDK how this guy can look around, see that MOST of his students are failing, then just change their grades and move on like they will succeed in future classes... Class averages for tests were around 40%. wtf?

0 helpful 1 unhelpful
109A . Lewis R B 8 Months Ago

he was so hard and honestly did not prepare you well the only reason people did okay was because of the curve.

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109AB . Lewis R B 8 Months Ago

Lewis is a good lecturer but this course was made for giving up your major. I will hate ochem for my whole life

1 helpful 0 unhelpful
CHEM109ABC . Lewis R B 8 Months Ago

Though the content is hard, Lewis does an excellent job of explaining it. You can tell he wants all of his students to be successful! He is extremely easy to reach outside of class, an excellent lecturer, and an overall nice guy. My advice for studying: form lecture groups, do book problems, and attend lectures.

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