Synthesis of the first examples of 1-benzophosphepines
- 1 January 1991
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 17,p. 1227-1228
- https://doi.org/10.1039/c39910001227
Abstract
Flash vacuum pyrolysis of 2a,7b-dihydro-3-phenyl-3H-cyclobut[b]phosphindole 3-oxide 4, prepared from 1-phenyl-1H-phosphindole 1-oxide 1via three steps, results in ring-opening to give 1-phenyl-1-benzophosphepine 1-oxide 5, which, on treatment with trichlorosilane, undergoes deoxygenation to afford 1-phenyl-1-benzophosphepine 6.Keywords
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