/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 9-9-8 P-b Using any alkyne needed, how wou... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 9: Q. 9-9-8 P-b (page 272)

Using any alkyne needed, how would you prepare the following alkenes?

(b) cis-3-Heptene

Short Answer

Expert verified

It鈥檚 the reagent used in the reaction to convert the alkyne to an alkene by hydrogenation when 1 equivalent When 2 equivalent is present alkyne converts to alkane.

Step by step solution

01

Lindlar’s catalyst

It鈥檚 the reagent used in the reaction to convert the alkyne to an alkene by hydrogenation when 1 equivalent When 2 equivalent is present alkyne converts to alkane.

02

Formation of cis-3-Heptene

Alkyne hydrogenation to alkene occurs when a less active Lindlar鈥檚 catalyst is used which is a finely divided palladium metal with lead acetate and quinoline, an aromatic amine. The hydrogenation occurs with syn stereochemistry.

03

Reaction with Lindlar’s catalyst

When alkyne reacts with Lindlar鈥檚 catalyst then it breaks the three out of one bond and converts alkyne to an alkene by the addition of hydrogen to the atom and forms alkene as shown:

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The sex attractant given off by the common housefly is an alkene named muscalure. Propose a synthesis of muscalure starting from acetylene and any alkyl halides needed. What is the IUPAC name for muscalure?

Muscalure

Which of the following bases could be used to deprotonate 1-butyne?

(a)

There are seven isomeric alkynes with the formulaC6H10 . Draw and name them.

The final step in the hydration of an alkyne under acidic conditions is the tautomerization of an enol intermediate to give the corresponding ketone. The mechanism involves a protonation followed by a deprotonation.

Show the mechanism for each of the following tautomerizations.

Question: How would you carry out the following reactions?
See all solutions

Recommended explanations on Chemistry Textbooks

Nuclear Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation

Chemical Reactions

Read Explanation

Chemical Analysis

Read Explanation

Physical Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.