Exam3-2008

Exam3-2008 - CHEMISTRY 2261 EXAM 3 October 29, 2008 NAME...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEMISTRY 2261 October 29, 2008 EXAM 3 NAME (PRINT)____________________________________________ 123456789 1 0 1 1 TOTAL LIST number 1. (12 pts, 4 pts ea) Give the major product(s) (indicating stereochemistry where appropriate) of each of the following reactions. a) b) c) Cl 2 H 2 O 1. BH 3 2. HOOH, NaOH HBr peroxide 2. (6 pts) Draw all stereoisomers for the following structures. (b) (a) Me Me Me Me CN CN NC
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 3. (8 pts, 4 pts ea) Provide the required diene and dienophile for each of the following Diels-Alder reactions. b) a) H H O 2 N OMe N O O Me 4. (8 pts) Choose (circle) the major isomer produced in the following Diels-Alder reaction. OMe CN Me + Δ OMe CN Me OMe CN Me OMe Me CN OMe Me CN OMe CN Me OMe CN Me OMe Me CN OMe Me CN OMe CN Me OMe CN Me OMe Me CN OMe Me CN OMe CN Me OMe CN Me OMe Me CN OMe Me CN
Background image of page 2
3 5. (12 pts) Draw significant resonance contributors for the following structure. Identify the major resonance contributor(s). N N 6. (6 pts) Indicate the Cahn-Ingold-Prelog priorities of the groups attached to the stereogenic carbon in each of the following molecules and label the stereocenter ( R ) or ( S ) as shown in the example. You will not get credit unless assign correct priorities.
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
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Exam3-2008 - CHEMISTRY 2261 EXAM 3 October 29, 2008 NAME...

This preview shows document pages 1 - 5. Sign up to view the full document.

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