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Quiz

CHEM XL-14A Quiz 2Exam


Department
Chemistry and Biochemistry
Course Code
CHEM 14A
Professor
All
Study Guide
Quiz

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NAME:_____________________________
TA: Robert
Section: 1E
Quiz #2
1. In today’s experiment, we will be reducing camphor with sodium borohydride in
the presence of excess methanol. Draw and label the major product isoborneol
and the minor product borneol (4pts). What is the stereochemistry at the new
chiral centers produced for each product (2pts).
2. Explain why isoborneol is the preferred product. Is isoborneol the endo or the
exo product? (2pts)
3. How much material is needed to get an accurate melting point? (2pts)
4. What is the driving force for the reduction of camphor using sodium
borohydride? (2pts)
5. When using the rotary evaporator, why should you not fill the round bottom
flask more than halfway? (4pts)
6. Why is NaBH4 used in this reaction today instead of LiAlH4? (4pts)
O
NaBH4
MeOH
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