Reaction of the Small Closo Carboranes 1,6-C2B4H6 and 2,4-C2B5H7 with BX3 (X = Halogen, Phenyl): A Method of Preparing “3”-Substituted 2,4-C2B5H7 Derivatives and Preparation of 2-Br2B-closo-l,6-C2B4H5

Wonwoo Nam; Thomas Onak

doi:10.1021/ic00248a011

Reaction of the Small Closo Carboranes 1,6-C₂B₄H₆ and 2,4-C₂B₅H₇ with BX₃ (X = Halogen, Phenyl): A Method of Preparing “3”-Substituted 2,4-C₂B₅H₇ Derivatives and Preparation of 2-Br₂B-closo-l,6-C₂B₄H₅

Wonwoo Nam, Thomas Onak

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The reaction of closo-2,4-C₂B₅H₇with BX₃ (X = Cl, Br, I, C₆H₅) at elevated temperatures (270 °C for BC1₃, 160 °C for BBr₃, 120 °C for BI₃, 160 °C for B(C₆H₅)₃) results in halogen, or phenyl, substitution primarily at the 3-position of the carborane (i.e. 3-X-closo-2,4-C₂B₅H₆). closo-2,4-C₂B₅H₇also reacts with (CH₃)₃CC1 at 270 °C to give 3-C1-Closo-2,4-C₂B₅H₆. A closo carborane containing a trigonal boron σ-bonded to a cage carborane, 2-Br₂B-closo-l,6-C₂B₄H5, is prepared from closo- 1,6-C₂B₄H₆and BBr₃ at 265 °C.

Original language	English
Pages (from-to)	48-52
Number of pages	5
Journal	Inorganic Chemistry
Volume	26
Issue number	1
DOIs	https://doi.org/10.1021/ic00248a011
State	Published - 1987

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@article{09ae6da1d01947dcb51259c9d3cd86f8,

title = "Reaction of the Small Closo Carboranes 1,6-C2B4H6 and 2,4-C2B5H7 with BX3 (X = Halogen, Phenyl): A Method of Preparing “3”-Substituted 2,4-C2B5H7 Derivatives and Preparation of 2-Br2B-closo-l,6-C2B4H5",

abstract = "The reaction of closo-2,4-C2B5H7with BX3 (X = Cl, Br, I, C6H5) at elevated temperatures (270 °C for BC13, 160 °C for BBr3, 120 °C for BI3, 160 °C for B(C6H5)3) results in halogen, or phenyl, substitution primarily at the 3-position of the carborane (i.e. 3-X-closo-2,4-C2B5H6). closo-2,4-C2B5H7also reacts with (CH3)3CC1 at 270 °C to give 3-C1-Closo-2,4-C2B5H6. A closo carborane containing a trigonal boron σ-bonded to a cage carborane, 2-Br2B-closo-l,6-C2B4H5, is prepared from closo- 1,6-C2B4H6and BBr3 at 265 °C.",

author = "Wonwoo Nam and Thomas Onak",

year = "1987",

doi = "10.1021/ic00248a011",

language = "English",

volume = "26",

pages = "48--52",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Reaction of the Small Closo Carboranes 1,6-C2B4H6 and 2,4-C2B5H7 with BX3 (X = Halogen, Phenyl)

T2 - A Method of Preparing “3”-Substituted 2,4-C2B5H7 Derivatives and Preparation of 2-Br2B-closo-l,6-C2B4H5

AU - Nam, Wonwoo

AU - Onak, Thomas

PY - 1987

Y1 - 1987

N2 - The reaction of closo-2,4-C2B5H7with BX3 (X = Cl, Br, I, C6H5) at elevated temperatures (270 °C for BC13, 160 °C for BBr3, 120 °C for BI3, 160 °C for B(C6H5)3) results in halogen, or phenyl, substitution primarily at the 3-position of the carborane (i.e. 3-X-closo-2,4-C2B5H6). closo-2,4-C2B5H7also reacts with (CH3)3CC1 at 270 °C to give 3-C1-Closo-2,4-C2B5H6. A closo carborane containing a trigonal boron σ-bonded to a cage carborane, 2-Br2B-closo-l,6-C2B4H5, is prepared from closo- 1,6-C2B4H6and BBr3 at 265 °C.

AB - The reaction of closo-2,4-C2B5H7with BX3 (X = Cl, Br, I, C6H5) at elevated temperatures (270 °C for BC13, 160 °C for BBr3, 120 °C for BI3, 160 °C for B(C6H5)3) results in halogen, or phenyl, substitution primarily at the 3-position of the carborane (i.e. 3-X-closo-2,4-C2B5H6). closo-2,4-C2B5H7also reacts with (CH3)3CC1 at 270 °C to give 3-C1-Closo-2,4-C2B5H6. A closo carborane containing a trigonal boron σ-bonded to a cage carborane, 2-Br2B-closo-l,6-C2B4H5, is prepared from closo- 1,6-C2B4H6and BBr3 at 265 °C.

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U2 - 10.1021/ic00248a011

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