1999 organo-phosphorus compounds, nonmetal heterocycles

organo-phosphorus compounds, nonmetal heterocyclesS 0087

31 - 213Organophosphorus Compounds. Part 141. Phosphorus-ContainingCage Compounds from the Reaction of 7,8-Dichlorocycloocta-1,3,5-triene with tert-Butylphosphaacetylene and Subsequent Chemistry.— The structure of the cage compound (III) is confirmed by the X-raystructure analysis of the corresponding W(CO)5 complex. Such a compoundwith a sterically fixed 1,4-diene system is useful for homo-Diels–Alder reac-tions with electron-deficient alkynes such as (IV). — (LOEBER, OLIVER;BERGSTRAESSER, UWE; REGITZ, MANFRED; Synthesis (1999) 4, 644-649;Fachbereich Chem., Univ. Kaiserslautern, D-67663 Kaiserslautern, Germany;EN)

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