Improved syntheses of bis(ethynyl)-para-carboranes, 1,12-(RC{triple bond, long}C)2-1,12-C2B10H10 and 1,10-(RC{triple bond, long}C)2-1,10-C2B8H8 (R = H or Me3Si)

1. Fox, M.A.
2. Baines, T.E.
3. Albesa-Jové, D.
4. Howard, J.A.K.
5. Low, P.J.