Accession Number:

AD0601683

Title:

STUDIES ON 2,3-DICARBAHEXABORANE (8) AND RELATED COMPOUNDS.

Descriptive Note:

Technical rept. no. 6,

Corporate Author:

LOS ANGELES STATE COLL CALIF

Personal Author(s):

• Onak,Thomas
• Drake,Rogers P.
• Dunks,Gary B.

Report Date:

1964-05-01

Pagination or Media Count:

17.0

Abstract:

The reaction between alkynes and pentaborane at elevated temperatures was studied. Increasing the number of alkyl groups about the triple bond of the alkyne enhanced the reactivity toward pentaborane and resulted in increased yields of the corresponding 2,3-dicarbahexaborane8. Attempts to effect a direct conversion of alkynes and pentaborane to the appropriate 2,4-dicarbaclovoheptaborane7 were unsuccessful. The decomposition of 2,3-dicarbahexaborane8 in a silent electric discharge apparatus gave improved yields of 1,5-dicarbaclovopentaborane5 and 1,2-dicarbaclovohexaborane6. The thermal instabilities of the latter two compounds are related to previous studies. Author

Descriptors:

• *ORGANOBORANES
• SYNTHESIS(CHEMISTRY)
• PENTABORANES
• ALKANES
• CHEMICAL REACTIONS
• DECOMPOSITION
• ELECTRIC DISCHARGES
• THERMAL PROPERTIES
• STABILITY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE