Chapter 9: 9-56a (page 286)
Which of the following bases could be used to deprotonate 1-butyne?
(a)
Short Answer
KOH will not deprotonate 1-butyne
Chapter 9: 9-56a (page 286)
Which of the following bases could be used to deprotonate 1-butyne?
(a)
KOH will not deprotonate 1-butyne
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(c)
Let be a group and assume that for each positive integer i , Ni is a normal subgroup of G. If every element of can be written uniquely in the form ni1 .ni2 ...nikwith i1 < i2 < ... < ik and nijNij , prove that G Ni (see Exercise 34). [Hint: Adapt the proof of Theorem 9.1 by defining f(a1, a2...) to be the product of those ai that are not the identity element.]
The following cycloalkyne is too unstable to exist. Explain
The pkaof acetone, CH3COCH3, is 19.3. Which of the following bases is strong enough to deprotonate acetone?
(d) NaOCO3 ( pkaof CH3OH 15.6)
Terminal alkynes react with and water to yield bromo ketones. For example:
Propose a mechanism for the reaction. To what reaction of alkenes is
the process analogous?
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