/*! 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 19. Question:What type of sigmatropi... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 27: Q 19. (page 1093)

Question:What type of sigmatropic rearrangement is illustrated in each equation?

Short Answer

Expert verified

Answer

a. [1,3]-D shift

b. [3,3]-Sigmatropic rearrangement

Step by step solution

01

Sigmatropic rearrangement 

Sigmatropic rearrangement is a type of pericyclic reaction that involves the making and breaking of -bonds in a single system. The -bond rearranges and takes a new position.

An example of 3,3-sigmatropic rearrangement is given below:

02

Determination of products

a.

In the given reaction, the C-D bond is the sigma bond that breaks, and a new C-D bond forms at the C-3 position.

b.

The given reaction is an example of [3,3]-sigmatropic rearrangement, and the product is given below:

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

Question: What type of sigmatropic rearrangement is illustrated in each reaction?

Question: Draw the product of each Diels鈥揂lder reaction and indicate the stereochemistry at all stereogenic centers

Question: What product is formed from the Claisen rearrangement of each starting material?

Question: What product is formed when each compound undergoes thermal electrocyclic ring opening or ring closure? Label each process as conrotatory or disrotatory and clearly indicate the stereochemistry around tetrahedral stereogenic centers and double bonds.

Question: a) What is the structure of C, which is formed by oxy-Cope rearrangement of B with NaOEt?

(b) Draw a stepwise mechanism for the conversion of C to the bicyclic alcohol D.
See all solutions

Recommended explanations on Chemistry Textbooks

Physical Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation

Chemical Reactions

Read Explanation

Kinetics

Read Explanation

The Earths Atmosphere

Read Explanation

Chemistry Branches

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.