The products and transition states for Diels–Alder reaction of the given reactants are to be determined. Concept introduction: Diels–Alder is a type of organic reaction in which substituted alkene and conjugated diene react to form substituted cyclohexene derivative. It is a single step reaction. The general reaction of Diels–Alder is as follows: Diels–Alder reaction is between a conjugate diene and a reactant containing double bond (dienophile) to form the product and the product is called adduct. Diels–Alder reactions are highly stereospecific. The configuration, if dienophile is retained in the product and the reaction, is syn addition. The dienes react with dienophiles in cis forms rather than trans forms. Endo and exo refers to the orientation of dienophile and its electron withdrawing group, when it reacts with a diene in Diels–Alder reaction. The reaction with orientation of electron withdrawing group of dienophiles under the π orbitals of the diene is endo. The reaction with orientation of electron withdrawing group of dienophiles away from the π orbitals of the diene is exo. Endo is favored in the transition state of Diels–Alder reaction because of its lower energy. If a compound is stable, it has lower energy and if a compound is unstable, it has higher energy.

Question

Want to see the full answer?

Answer 1

Question

Chapter 13, Problem 17PP

Interpretation Introduction

Interpretation:

The products and transition states for Diels–Alder reaction of the given reactants are to be determined.

Concept introduction:

Diels–Alder is a type of organic reaction in which substituted alkene and conjugated diene react to form substituted cyclohexene derivative. It is a single step reaction.

The general reaction of Diels–Alder is as follows:

Diels–Alder reaction is between a conjugate diene and a reactant containing double bond (dienophile) to form the product and the product is called adduct.

Diels–Alder reactions are highly stereospecific. The configuration, if dienophile is retained in the product and the reaction, is syn addition.

The dienes react with dienophiles in cis forms rather than trans forms.

Endo and exo refers to the orientation of dienophile and its electron withdrawing group, when it reacts with a diene in Diels–Alder reaction.

The reaction with orientation of electron withdrawing group of dienophiles under the π orbitals of the diene is endo.

The reaction with orientation of electron withdrawing group of dienophiles away from the π orbitals of the diene is exo.

Endo is favored in the transition state of Diels–Alder reaction because of its lower energy.

If a compound is stable, it has lower energy and if a compound is unstable, it has higher energy.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10 Consider the following reaction: CH3OH(g) CO(g) + 2H2(g) (Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.) Part A Calculate AG for this reaction at 25 °C under the following conditions: PCH₂OH Pco PH2 0.815 atm = 0.140 atm 0.170 atm Express your answer in kilojoules to three significant figures. Ο ΑΣΦ AG = -150 Submit Previous Answers Request Answer □? kJ × Incorrect; Try Again; 2 attempts remaining Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship: AGrxn = AGrxn + RTInQ, AGxn+RTInQ, where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a is the reaction quotient. Provide Feedback Next >

Identify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.

Identify and provide a concise explanation of the concept of signal-to-noise ratio (SNR) in the context of chemical analysis. Provide specific examples.