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Retro-Diels–Alder reaction
The retro-Diels–Alder reaction (rDA) is the microscopic reverse of the Diels–Alder reaction—the formation of a diene and dienophile from a cyclohexene. It can be accomplished spontaneously with heat, or with acid or base mediation.
With an appropriate driving force, the Diels–Alder reaction proceeds in reverse, providing diene and dienophile from starting cyclohexene derivatives. As early as 1929, this process was known and applied to the detection of cyclohexadienes, which released ethylene and aromatic compounds after reacting with acetylenes through a Diels–Alder/retro-Diels–Alder sequence. Since then, a variety of substrates have been subject to the rDA, yielding many different dienes and dienophiles. Additionally, conducting the rDA in the presence of a scavenging diene or dienophile has led to the capture of many transient reactive species.
''(1)''File:RDAGen.png
== Mechanism and stereochemistry ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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