W. V. Dahlhoff, K. Taba, R. Mynott
1989
Citations
0
Influential Citations
2
Citations
Journal
Zeitschrift für Naturforschung B
Abstract
Abstract Dichlorophenylphosphine reacts with two equivalents of dibenzoylmethane at -30 °C in the presence of triethylamine to give a tricyclic phosphorane intermediate 4 which isomerizes to the more stable phosphinic acid ester 5 above 30 °C. The structures of 4 and 5 were determined by 13C, 1H shift correlated 2D NMR spectroscopy using long range couplings.