ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
10th Edition
ISBN: 9781259972348
Author: Carey
Publisher: MCG CUSTOM
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Chapter 11, Problem 54P
Interpretation Introduction
Interpretation:
The given cycloaddition reactions are allowed or forbidden according to the Woodward-Hoffmann rules is to be determined.
Concept introduction:
The orbitals directly involved in bond formation are called frontier orbitals. They are the HOMO of one reactant and LUMO of the other reactant.
Electron withdrawing groups attached to the dienophile increase its reactivity. Electrons flow from the diene to the dienophile.
In-phase overlap is necessary for the formation of a sigma bond. Such an overlap is termed as symmetry allowed, according to the Woodward-Hoffmann rules.
If the HOMO-LUMO lack symmetry and experience and antibonding interaction, then such an overlap is symmetry forbidden.
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Chapter 11 Solutions
ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
Ch. 11.1 - Prob. 1PCh. 11.1 - Prob. 2PCh. 11.2 - The two compounds shown differ by a factor of 60...Ch. 11.2 - Prob. 4PCh. 11.2 - Prob. 5PCh. 11.2 - Prob. 6PCh. 11.3 - Prob. 7PCh. 11.3 - Prob. 8PCh. 11.3 - Evaluate 2,3,3-trimethyl-1-butene as a candidate...Ch. 11.4 - After heating a solution of allyl tert-butyl...
Ch. 11.5 - Prob. 11PCh. 11.6 - Prob. 12PCh. 11.8 - Prob. 13PCh. 11.9 - What dienes containing isolated double bonds are...Ch. 11.10 - Prob. 15PCh. 11.10 - Prob. 16PCh. 11.11 - Prob. 17PCh. 11.12 - Dicarbonyl compounds such as quinones are reactive...Ch. 11.12 - 2,3-Di-tert-butyl-1,3-butadiene is extremely...Ch. 11.12 - Methyl acrylate (H2C=CHCO2CH3) reacts with...Ch. 11.13 - Prob. 21PCh. 11.14 - What diene and dienophile could you use to prepare...Ch. 11.14 - Write equations in the synthetic direction for the...Ch. 11.16 - Prob. 24PCh. 11.16 - Prob. 25PCh. 11 - Write structural formulas for each of the...Ch. 11 - Give an acceptable IUPAC name for each of the...Ch. 11 - A certain species of grasshopper secretes an...Ch. 11 - Which of the following are chiral?...Ch. 11 - Describe the molecular geometry expected for...Ch. 11 - Prob. 31PCh. 11 - What compound of molecular formula C6H10 gives...Ch. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - Prob. 36PCh. 11 - Identify the more reactive dienophile in each of...Ch. 11 - Prob. 38PCh. 11 - Prob. 39PCh. 11 - Prob. 40PCh. 11 - Prob. 41PCh. 11 - Prob. 42PCh. 11 - Prob. 43PCh. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - Prob. 46PCh. 11 - Show how to prepare each of the following...Ch. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 50PCh. 11 - Compound A was converted to compound B by the...Ch. 11 - Suggest reasonable explanations for each of the...Ch. 11 - Prob. 53PCh. 11 - Prob. 54PCh. 11 - Prob. 55DSPCh. 11 - Prob. 56DSPCh. 11 - Prob. 57DSPCh. 11 - Prob. 58DSPCh. 11 - Prob. 59DSP
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