Accession Number : AD0755957

Title :   Organometallic Reactions of 1-Ethynyl-1,2-Carborane.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY

Personal Author(s) : Callahan,Kenneth P. ; Hawthorne,M. Frederick

Report Date : 06 FEB 1973

Pagination or Media Count : 39

Abstract : Ethynylcarborane has been catalytically trimerized to 1,2,4-tris(1'-1',2'- carboranyl)benzene in high yield. The latter species failed to undergo electrophilic substitution on the aromatic ring. A normal substitution product was obtained from the reaction between Co2(CO8) and ethynylcarborane. The interaction of ethynylcarborane with trans-IrCl(CO)(P(C6H5)3)2 afforded a novel octahedral complex containing sigma-2-carboranylacetylide and sigma-trans-2-carboranylvinyl substituents. Copper(II)-catalyzed oxidative coupling produced 1,4-di-(1'-1.2'-carboranyl)butadiyne in good yield. The latter compound was resistant to addition reactions at the triple bonds. (Author)

Descriptors :   (*BORON COMPOUNDS, CHEMICAL REACTIONS), (*ALKYNES, CHEMICAL REACTIONS), (*METAL CARBONYLS, *COMPLEX COMPOUNDS), POLYMERIZATION, COBALT COMPOUNDS, IRIDIUM COMPOUNDS, MOLECULAR STRUCTURE, NUCLEAR MAGNETIC RESONANCE, INFRARED SPECTRA

Subject Categories : Inorganic Chemistry
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE