21022-98-0

Upstream product

• 101436-74-2 bis-(2,5-dimethyl-phenyl)-mercury 
• 95-47-6 o-xylene 
• 106-42-3 para-xylene 
• 10294-34-5 boron trichloride 
• 19287-45-7 diborane 
• 108-67-8 1,3,5-trimethyl-benzene 
• 74-88-4 methyl iodide 
• 7553-56-2 iodine 
• 7446-70-0 aluminium trichloride 

Downstream Products

• 85199-06-0 2,5-dimethylphenyl boronic acid 
• 106-42-3 para-xylene 
• 10294-34-5 boron trichloride 
• 95-47-6 o-xylene 
• 95-63-6 1,2,4-Trimethylbenzene 
• 108-88-3 toluene 
• 108-67-8 1,3,5-trimethyl-benzene 
• 95-87-4 2,5-Dimethylphenol 
• 98221-23-9 2-(3-methylphenyl)-naphtho{2,3-d}-1,3-dioxo-borole 
• 97980-77-3 2-(4-methylphenyl)-naphtho{2,3-d}-1,3-dioxa-2-borole 
• 85107-38-6 2-(4-methylphenyl)-benzo-1,3-dioxa-2-borole 
• 96487-03-5 2-(3-methylphenyl)-benzo-1,3-dioxo-borole 
• 14062-19-2 p-tolylacetic acid ethyl ester 
• 16557-41-8 3,4-(CH₃)2C₆H₃BCl₂ 

Relevant academic research and scientific papers

A New Borylation Method for Alkylbenzene and Polystyrene

The borylation of alkylbenzenes by Hal2BH (Hal = F, Cl, Br) gives H2 and a mixture of m- and p-alkyl(dihaloboryl)benzenes.In the case of bulky alkyl groups, such as isopropyl, tert-butyl, these are partially split off as R - H and RBHal2.The phenyl groups in polystyrene-divinylbenzene copolymers undergo borylation with Br2BH in a 55percent yield.

Methyl group migration in the preparation of o-tolyl- and p-xylyldichloroboranes

In the preparation of o-tolyldichloroborane and p-xylyldichloroborane migration of the methyl group ortho to the BCl2 group occurred. The evidence suggests that rearrangement occurs in a transition state in which the BCl2 group is only weakly bonded to the aromatic system.