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Chapter 26: Q 8. (page 1049)

What starting materials are needed to prepare each compound using a Heck reaction?

Short Answer

Expert verified

Answer

a.

b.

c.

Step by step solution

01

Heck Reaction

The Heck reaction is a cross-coupling reaction involving a vinyl or aryl halide with an unsaturated compound, catalyzed by palladium (II) acetate(PdOAc2)in the presence of a base such as triethyl amine (Et3N)and triaryl phosphine (Po-tolyl3)to form a highly substituted alkene.

02

Substrates

The following substrates are involved in the given set of reactions:

a.

Starting materials required to prepare a.

b.

Starting materials required to prepare b.

c.

Starting materials required to prepare c.

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Most popular questions from this chapter

What ring-closing metathesis product is formed when each substrate is treated with Grubbs catalyst under high-dilution conditions?

a.

b.

c.

Draw the products formed in each reaction.

a.

b.

c.

d.

e.

f.

g.

h.

Draw the product formed from the ring-closing metathesis of each compound. Then, devisea synthesis of each metathesis starting material using any of the following compounds: CH2(CO2Et)2, alcohols with less than five carbons, and any needed organic and inorganicreagents.

a.

b.

Draw the products formed when each alkene is treated with Grubbs catalyst.

a.

b.

c.

Draw the product of each coupling reaction.

a.

b.

c.

d.
See all solutions

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