- Stereochemistry of Dehydrogenation of 1,4-cyclohexadiene with 2,3-dichloro-5,6-dicyano-p-benzoquinone
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cis- and trans-(3,6-D2)-1,4-cyclohexadienes 1a and 1b have been synthesized from cis-3,4-dichlorocyclobutene (5).Aromatization to benzene with DDQ is cis-stereospecific with an uncertainty of 5percent.This results is discussed in relation to concerted or stepwise mechanisms for aromatization of 1,4-dihydroaromatics with 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ).
- Mueller, Paul,Joly, Daniel,Mermoud, Francois
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p. 105 - 112
(2007/10/02)
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