2.3- Dicarba-nido-hexaborane

Many derivatives of isomeric 2,3-dicarba-nido-hexaborane(8) are known, available from the reaction of pentaborane(9) with alkynes [59, 60]. In contrast, the carboranes of type 43 with non-adjacent carbon atoms are rare. 

Trimethylsilyl-Substituted Derivatives of 2,3-Dicarba-nido-hexaborane(8) 89... 

CiuH38BaP2Pt, 4,5-/Li-Hydridobis(triethylphosphine)platinum-2,3-dicarba-nido-hexaborane(8), 45B, 1334 Ci4Hj,iB9P2Pt, 3,3-Bis(triethylphosphine)-1, 2-dicarba-3-platina-dodecaborane(11), 44B, 1058... 

Scheme 3.2-42. Hydroboration of 3,4-diisopropylidene-l-thia-2,5-diborolane 82 with thf-BHj forms the 2-thia-4,5-dicarba-nido-hexaborane 83 and small amounts of the thiadiborole 84.

Trimethylsilyl-Substituted Derivatives of2,3-Dicarba-nido-hexaborane S) 93... 

In volume 29 of Inorganic Synthesis edited by Grimes, a chsqrter has been devoted to compounds of boron. Included here are pr arative routes to c/oso-l,5-Et2-l,5-C2B3Et3,ll nido-2,6,8,10-Et4-2,6,8,10-C4BgEte, l trimethylsilyl-substituted derivatives of 2,3-dicarba-mdo-hexaborane(8), lithium, sodium, and dilithium salts of 2,3-bis(trimethylsilyl)-2,3-dicarba-md<>-... 

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