X-Ray crystal structure and Diels–Alder reactivity of the 3,4-dimethyl-2H-phosphole dimer
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 21,p. 1272-1273
- https://doi.org/10.1039/c39820001272
Abstract
The [4 + 2] P–P bonded dimer of 3,4-dimethyl-2H-phosphole has the ecdo geometry with long, weak P–P and C–C bridges between the two phosphole units; it can therefore act as generator of monomeric 3,4-dimethyl-2H-phosphole at ca. 100 °C and gives the expected [4 + 2] and [2 + 4] cycloadducts with diphenylacetylene and 2,3-dimethylbutadiene.Keywords
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