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Chapter 26: Q 2. (page 1051)

Identify reagents A and B in the following reaction scheme. This synthetic sequence was used to prepare the C18 juvenile hormone (Figure 20.6).

Short Answer

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Step by step solution

01

Organocuprate reaction

Hydrocarbons are synthesized via the reaction of alkyl halides with organocuprate reagents leading to the formation of a new C-C bond.

02

Identifying reagents (A & B)

The given alkyl iodide is reacted with lithium diethyl cuprate (A) to form the corresponding hydrocarbon.

Formation of hydrocarbon using lithium diethyl cuprate

Again, the other alkyl iodide would react with lithium dimethyl cuprate (B) to form the corresponding hydrocarbon.

Formation of hydrocarbon using lithium dimethyl cuprate

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Most popular questions from this chapter

Devise a synthesis of each compound from cyclohexene and any required organic or inorganic reagents.

a.

b.

Synthesize each product from the given starting materials using an organocuprate coupling reaction.

Draw all stereoisomers formed when each alkene is treated with CHCl3and KOC(CH3)3.

a.

b.

c.

Bi-aryls, compounds containing two aromatic rings joined by a C-C bond, can often be efficiently made by two different Suzuki couplings; that is, either aromatic ring can be used to form the organoborane needed for coupling. In some cases, however, only one route is possible. With this in mind, synthesize each of the following bi-aryls using benzene as the starting material for each aromatic ring. When more than one route is possible, draw both of them. You may use any required organic or inorganic reagents.

What product is formed by ring-closing metathesis of each compound?

a.

b.
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