234-E4-SP08 - needed to go to completion without excess Briefly explain Br Br H 3 C C C CH 3 6(12 points Clearly indicate the MAJOR final product(s

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEM 234 Exam 4 Spring 2008 Name: 1. (32 points) Predict the product(s) for the following reactions. If more than one product is likely to be formed in significant quantity, indicate which is the major product. Where stereoisomers are possible, clearly show all stereoisomers formed. A) B) HO OH O - K + (1 equivalent) Br C) D) HI H 2 / Pt
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. (16 points) Predict the MAJOR product for the following reactions. You do not need to show all stereoisomers. A) B) 1) BH 3 :THF 2) H 2 O 2 , OH - 3. (10 points) CORRECTED : A compound with the formula C 8 H 14 is subjected to ozonolysis to gives the structure below. What was that starting compound? H 2 O H 2 SO 4 (catalytic) H O O
Background image of page 2
4. (10 points) For the following reaction, provide a complete, detailed arrow-pushing mechanism to get from the reactant to the final product. (Sufficient NaNH 2 is present for the reaction.) 5. (6 points) How many equivalents of NaNH 2 are required to carry out the following reaction. (Give the precise number
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: needed to go to completion, without excess.) Briefly explain. Br Br H 3 C C C CH 3 6. (12 points) Clearly indicate the MAJOR final product(s) of the following reaction including all stereoisomers. Draw a complete arrow-pushing mechanism for the formation of one of the stereoisomer products. Clearly indicate stereochemistry and charges at each step. Br 2 OH 7. (14 points) Using the indicated starting materials as your only source of carbon atoms, outline a synthesis for the following molecule ( cis-isomer only). You may use any other required reagents. Br Starting Materials Final Product BONUS: (8 points) Show a detailed, arrow-pushing mechanism for the full reaction in question #2B. The mechanisms for both reaction steps must be correct to receive credit....
View Full Document

This note was uploaded on 09/03/2010 for the course CHEM 234 taught by Professor Bates during the Fall '08 term at University of California, Berkeley.

Page1 / 7

234-E4-SP08 - needed to go to completion without excess Briefly explain Br Br H 3 C C C CH 3 6(12 points Clearly indicate the MAJOR final product(s

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online