Why Is the Diels-Alder Reaction Called a Thermal [4+2] Cycloaddition

question 52

Multiple Choice

Why is the Diels-Alder reaction called a thermal [4+2] cycloaddition?

• A)Because the reaction is initiated by heat; the diene has four p electrons and the dienophile has two p electrons.
• B)Because the reaction is initiated by light; the diene has four p electrons and the dienophile has two p electrons.
• C)Because the reaction is initiated by heat; the dienophile has four p electrons and the diene has two p electrons.
• D)Because the reaction is initiated by light; the dienophile has four p electrons and the diene has two p electrons.

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Definitions:

Mathematical Expression

A combination of numbers, symbols, and operators (such as +, -, *, /) that represents a quantitative relationship or value.

Present Value Calculation

A formula used to determine the current value of a sum of money to be received in the future, accounting for a specific interest rate.

Exponentiation

A mathematical operation involving the raising of one number to the power of another.

Variable Substitution

In mathematics, this involves replacing variables with other variables or values to simplify expressions or solve equations.