28347-92-4

Basic information

• Product Name: 5-Cl-closo-2,4-C₂B₅H₆
• Synonyms: 5-Cl-closo-2,4-C₂B₅H₆
• CAS NO: 28347-92-4
• Molecular Weight: 119.578
• Mol File: 28347-92-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-Cl-closo-2,4-C₂B₅H₆(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Cl-closo-2,4-C₂B₅H₆(28347-92-4)
• EPA Substance Registry System: 5-Cl-closo-2,4-C₂B₅H₆(28347-92-4)

Safety Data

• Hazardous Substances Data: 28347-92-4(Hazardous Substances Data)

Upstream product

• 20693-69-0 2,4-dicarba-closo-heptaborane 
• 23704-81-6 1,6-dicarba-closo-decaborane⁽¹⁰⁾ 

Downstream Products

• 79568-29-9 1-CH₃-5-Cl-closo-2,4-C₂B₅H₅ 
• 79550-11-1 5-CH₃-6-Cl-closo-2,4-C₂B₅H₅ 
• 7318-78-7 dichloro-methyl-borane 
• 10294-34-5 boron trichloride 
• 40710-68-7 1,1-bis(dichloroboryl)methane 

Relevant articles and documents

Relative reactivities of the small closo carboranes 1,6-C2B4H6 and 2,4-C2B5H7 and of closo-1,10-C2B8H10 toward electrophilic reagents

The relative reactivities of the closo carboranes C2BnHn+2 (n = 4, 5, 8), and some of their derivatives, toward electrophilic reagents of the type RX/AlCl3 (RX = CH3Cl, C2H5Cl, Cl2, Br2) are reported from competition studies. Among the three parent carborane compounds, closo-2,4-C2B5H7 is the most reactive toward an electrophilic type of substitution. Alkyl substituents on closo-2,4-C2B5H7 enhance the reactivity of the compound toward an electrophilic substitution, whereas halogen substituents decrease the reactivity. However, in the closo-1,6-C2B4H6 system, the reactivity of the chloro-substituted compound, 2-Cl-1,6-C2B4H5, toward an electrophilic substitution is greater, at the 4-position, than that of the parent carborane. The nature (halogen or alkyl) and cage position of a substituent on closo-2,4-C2B5H7 appear to have little or no influence on the site of electrophilic substitution.