title: Carbaborane-based alkynylphosphanes and phospholes.
abstract: The reaction of 1,2-bis(N,N-dimethylaminochloro-phosphanyl)-1,2-dicarba-closo-dodecaborane(12) and lithiated phenylacetylene gives a five-membered dihydrophosphole derivative with an exocyclic phosphanyl group. This unexpected reaction opens new possibilities for the synthesis of carbaborane-containing phosphorus heterocycles. P,P'-alkynylated 1,2-bis(phosphanyl)-1,2-dicarba-closo-dodecaborane(12)s are obtained from alkynylchlorophosphanes and dilithiated carbaborane. This new class of alkynes can be used for future applications in cyclizations and polymerizations.
authors.affiliation: Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany. hey@uni-leipzig.de.
authors.forename: Anika
authors.initials: A
authors.lastname: Kreienbrink
authors.forename: Menyhárt B
authors.initials: MB
authors.lastname: Sárosi
authors.forename: Robert
authors.initials: R
authors.lastname: Kuhnert
authors.forename: Peter
authors.initials: P
authors.lastname: Wonneberger
authors.forename: Anna I
authors.initials: AI
authors.lastname: Arkhypchuk
authors.forename: Peter
authors.initials: P
authors.lastname: Lönnecke
authors.forename: Sascha
authors.initials: S
authors.lastname: Ott
authors.forename: Evamarie
authors.initials: E
authors.lastname: Hey-Hawkins