Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 71, Issue 16, Pages 6211-6220Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo060975n
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- NIGMS NIH HHS [GM30938] Funding Source: Medline
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A general synthesis of a new type of heterodiene, the N-vinyl nitrone, is described. The synthetic sequence begins with the conjugate addition of benzeneselenol to nitroalkenes (in turn derived from Henry reaction of an aldehyde and a nitroalkane) to provide 2-selenenylnitroalkenes. These selenonitroalkanes are reduced to the corresponding hydroxylamines which are combined with aldehydes to form nitrones. The phenylselenenyl-containing nitrones are then oxidized to selenoxides which undergo syn-selenoxide elimination to provide N-vinyl nitrones. Three X-ray crystal structures of substituted N-vinyl nitrones were obtained. In addition, the first [4+2] cycloaddition of an N-vinyl nitrone is reported.
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