Weber, Lothar; Frebel, Matthias; Boese, Roland:
Transition-metal-substituted diphosphenes. XVII. Dipolar [3 + 2] cycloadditions of carbonyl-activated alkynes to (h5-C5Me5)(CO)2Ru-P=P-aryl (aryl = 2,4,6-tBu3C6H2). First examples of s/p-rearrangements of diphosphene ligands.
1989
In: Chemische Berichte (Chem.Ber.), Jg. 122 (1989), Heft 11, S. 2091 - 2096
Artikel/Aufsatz in Zeitschrift1989Chemie
Titel:
Transition-metal-substituted diphosphenes. XVII. Dipolar [3 + 2] cycloadditions of carbonyl-activated alkynes to (h5-C5Me5)(CO)2Ru-P=P-aryl (aryl = 2,4,6-tBu3C6H2). First examples of s/p-rearrangements of diphosphene ligands.
Autor(in):
Weber, Lothar; Frebel, Matthias; Boese, RolandLSF
Erscheinungsjahr
1989
Erschienen in:
Titel:
Chemische Berichte (Chem.Ber.)
in:
Jg. 122 (1989), Heft 11, S. 2091 - 2096
ISSN:

Abstract:

The reaction of (h5-C5Me5)(OC)2RuP:PR [I, R = 2,4,6-(Me3C)3C6H2] with Me 2-butynoate yielded the five-membered metallaheterocycle II with an (E)-configurated exocyclic P:P bond. On the other hand, the similarly formed cycloadduct, obtained from I and MeO2CC.tplbond.CCO2Me at -78 Deg, rapidly underwent a s/p rearrangement to the complex III featuring a h2-coordinated P:P unit. The mol. structure of III was established by single-crystal x-ray diffraction anal.