Journal of Organic Chemistry p. 4726 - 4732 (1987)
Update date:2022-07-31
Topics:
Coxon, James M.
O'Connel, Michael J.
Steel, Peter J.
The reactions of the title diene (2) with olefinic dienophiles occur exclusively by attack on the carbonyl-bearing face of the diene component of 2, while other dienophiles (benzyne, acetylenes, and azo compounds) exhibit mixed ?-facial selectivities.X-ray crystal structures of the diene 5 and the diethyl azodicarboxylate adduct 47, refined to conventional R values of 3,8percent and 4.0percent, respectively, are also reported.
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Doi:10.1016/0008-6215(86)85066-2
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