Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1314678 | Journal of Fluorine Chemistry | 2008 | 8 Pages |
Abstract
Diethyl 3,3,3-trifluoroprop-1-ynylphosphonate and diethyl 3,3,4,4,4-pentafluorobut-1-ynylphosphonate are obtained by the dehydration of the corresponding enols using P2O5–Et3N system as a dehydrating agent, affording acetylenes in 50–60% yield. By the reaction of these perfluoroacetylenephosphonates with acyclic and cyclic 1,3-dienes or diene-like heteroaromatic and aromatic compounds corresponding Diels–Alder cyclo- and bicycloadducts were prepared in good yields (65–90%). The reactivity of the dienes and acetylenes which depends on their structure, as well as the regioselectivity of the reaction are established.
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Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
Sergey N. Tverdomed, Gerd-Volker Roeschenthaler, Nataliya Kalinovich, Enno Lork, Alla V. Dogadina, Boris I. Ionin,