'Endo product' presentation slideshows

Conjugated Dienes and Ultraviolet Spectroscopy

Conjugated Dienes and Ultraviolet Spectroscopy. Key Words. Conjugated Diene Resonance Structures Dienophiles Concerted Reaction Pericyclic Reaction Cycloaddition Reaction Bridged Bicyclic Compound Cyclic Compounds Endo Exo. What are Conjugated Dienes?.

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Dienes

Dienes. Dienes. Types of dienes : isololated cumulated conjugated. hexa-1,5-diene. Double bonds are not in conjugation and do not influence each other and therefore react in reactions characteristic for alkenes addition reactions.

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Lecture 9b

Lecture 9b. Diels-Alder Reaction II. Diene Conformation. A diene and dienophile undergo a cycloaddition Prototype reaction: butadiene and ethylene [ 4n+2 ] p -addition In order for the aromatic transition state to form, the diene has to be s-cis conformation ( cisoid ).

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