Chapter 11: Q42. (page 451)
Question: What reactions are needed to convert alcohol A into either alkyne B or alkyne C?
Short Answer
Answer
Chapter 11: Q42. (page 451)
Question: What reactions are needed to convert alcohol A into either alkyne B or alkyne C?
Answer
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Get started for freeQuestion: Explain why 2,2,5,5-tetramethylhex-3-yne can’t be made using acetylide anions
Question: Answer the following questions about erlotinib and phomallenic acid C. Erlotinib, sold under the trade name Tarceva, was introduced in 2004 for the treatment of lung cancer. Phomallenic acid C is an inhibitor of bacterial fatty acid synthesis.
a. Which C-H bond in erlotinib is most acidic?
b.What orbitals are used to form the shortest C-C single bond in erlotinib?
c. Which H atom in phomallenic acid C is most acidic?
d. How many sp hybridized carbons are contained in phomallenic acid C?
e. Rank the labelled bonds in phomallenic acid C in order of increasing bonds strength.
Nepheliosyne B is a novel acetylenic fatty acid isolated from a New Caledonian marine sponge.
(a) Label the most acidic H atom.
(b) Which carbon-carbon σ bond is shortest?
(c) How many degrees of unsaturation does nepheliosyne B contain?
(d) How many bonds are formed from ?
(e) Label each triple bond as internal or terminal.
Question: Give the IUPAC name for each compound.
a.
b.
Question: Ignoring stereoisomers, draw the two possible enols for butan-2-one (CH3COCH2CH3), and predict which one is more stable.
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