DOI: 10.1039/A703554C
(Paper)
Reference Section for: Chem. Commun., 1997, 1637-1638
Formation of 6,8-di-tert-butyl-3,4-dihydro-4,4-dimethyl-1-phosphanaphthalene by the reaction of 2,2-dibromo-1-(2,4,6-tri-tert-butylphenyl)-1-phosphaethene with butyllithium
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Shigekazu Ito, Kozo Toyota and Masaaki Yoshifuji
Abstract
Sterically crowded 1-bromo-2-(2,4,6-tri-tert-butylphenyl)- 2-phosphaethenyllithium gave 6,8-di-tert-butyl-3,4-dihydro-4,4-dimethyl-1-phosphanaphthalene by intramolecular insertion of an intermediary phosphinidene carbene species into one of the C–H bonds of the two o-tert-butyl groups.
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