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Hexaboranes dicarba

Heating of the dicarba-wtdo-hexaborane(8) 38 at 120 °C leads to elimination of EtBH2 (Scheme 3.2-19) and quantitatively gives pentaethyl-l,5-dicarba-doso-... [Pg.285]

Scheme 3.2-23. Conversion of the 1-carba-orachno-penta-borane(lO) 30 into the 2,4-dicarba-n/do-hexaborane(8) 43, followed by deprotonation yields borate 44. Scheme 3.2-23. Conversion of the 1-carba-orachno-penta-borane(lO) 30 into the 2,4-dicarba-n/do-hexaborane(8) 43, followed by deprotonation yields borate 44.
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. [Pg.288]

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. 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.
Coordination chemistry of boranes and heteroboranes is a major field of research in cluster science. By far the most extensively studied clusters are the eleven vertex carboranes dicarba-nicfo-undecaborane, carba-mt/o-undecaborane and the six vertex carborane dicarba-m fifo-hexaborane. The synthesis of the elven vertex silaborate [MeSiBioHu] prompted us to study the coordination abilities of this cluster towards transition metals. In... [Pg.355]

B2SjC2H6, [ B2]-1, 2,4,3,5-Trithiadiborolane, 3,5-dimethyl-, 22 225 B]03C6Hu, Boroxin, triethyl-, 24 85 B4C6H16, 2,3-Dicarba-/iKto-hexaborane(8), 2,3-diethyl-, 22 211... [Pg.245]

Gas-phase electron diffraction patterns of l,2-dicarba-c/oso-hexaborane(6) (Figure 14) and carbahexaborane(7), (Figure 15), yielded a comprehensive set of structural parameters. ... [Pg.75]

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

TRIMETHYLSILYL-SUBSTITUTED DERIVATIVES OF 2,3-DICARBA-mCARBORANE DIANION 2,3-BIS(TRIMETHYLSILYL)-2,3-DICARBA-mrfo-HEXABORATE(2 - )... [Pg.89]

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

Trimethylsilyl-Substituted Derivatives ofl,3-Dicarba-nidn-hexaborane(%) 97... [Pg.97]

Dicarba-nitfo-hexaborane(8), 2-(trimethylsilyl)-, 29 95 B4Si2CgH24,2,3-Dicarba-m (fo-hexa-... [Pg.345]

See other pages where Hexaboranes dicarba is mentioned: [Pg.15]    [Pg.288]    [Pg.288]    [Pg.288]    [Pg.299]    [Pg.217]    [Pg.218]    [Pg.100]    [Pg.132]    [Pg.134]    [Pg.265]    [Pg.230]    [Pg.211]    [Pg.211]    [Pg.213]    [Pg.214]    [Pg.264]    [Pg.92]    [Pg.94]    [Pg.95]    [Pg.96]    [Pg.217]    [Pg.218]   
See also in sourсe #XX -- [ Pg.218 ]



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2.3- Dicarba-nido-hexaborane

Dicarba-mdo-hexaborane

Hexaborane

Hexaboranes

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