E1,241b,S06 - EXAM 1 CHEMISTRY 241b February 9, 2006 Dr....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEMISTRY 241b February 9, 2006 Dr. Spurgeon ANSWER KEY __________________________________________________________________________________________ 1. (22 points) Complete the following reactions schemes by filling in the ‘cyclobutanes’ with the correct answer, and answer any additional questions. Be sure to show regio- and/or stereochemistry. a. b. Using IUPAC names ONLY, what are the two products formed when 2,3-dimethyl-1,3-butadiene reacts with one mole of bromine. Note the temperature dependence below each answer. c. Provide the structures for all of the products when 2-methyl-1,3-butadiene reacts with hydrochloric acid. CHO + heat + The name of this reaction is: _______________________ What rule is obeyed in these products? ________________ Product at low temp. Product at high temp. CHO CH 3 H 3 C H CHO CH 3 H 3 C Diels-Alder reaction Endo Rule Note: I have drawn the structures in both types of structural representations – either way is acceptable. 1,4-Dibromo-2,3-dimethyl-2-butene
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/02/2008 for the course CHEM 241b taught by Professor Spurgon during the Spring '05 term at University of Arizona- Tucson.

Page1 / 4

E1,241b,S06 - EXAM 1 CHEMISTRY 241b February 9, 2006 Dr....

This preview shows document pages 1 - 2. Sign up to view the full document.

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