383175-93-7

Basic information

• Product Name: 1,3,2-Dioxaborolane, 2,2'-[5-(trimethylsilyl)-1,3-phenylene]bis[4,4,5,5-tetramethyl-
• CAS NO: 383175-93-7
• Molecular Formula: C21H36B2O4Si
• Molecular Weight: 402.222
• Mol File: 383175-93-7.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 1,3,2-Dioxaborolane, 2,2'-[5-(trimethylsilyl)-1,3-phenylene]bis[4,4,5,5-tetramethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3,2-Dioxaborolane, 2,2'-[5-(trimethylsilyl)-1,3-phenylene]bis[4,4,5,5-tetramethyl-(383175-93-7)
• EPA Substance Registry System: 1,3,2-Dioxaborolane, 2,2'-[5-(trimethylsilyl)-1,3-phenylene]bis[4,4,5,5-tetramethyl-(383175-93-7)

Safety Data

• Hazardous Substances Data: 383175-93-7(Hazardous Substances Data)

Upstream product

• 768-32-1 trimethylphenylsilane 
• 73183-34-3 bis(pinacol)diborane 
• 25015-63-8 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane 
• 17878-23-8 3,5-dibromo-1-trimethylsilylbenzene 
• 626-39-1 1,3,5-trisbromobenzene 

Downstream Products

• 666257-70-1 3,5-bis{3,5-dimethyl-4-(diazo[9-{10-(4-tert-butyl-2,6-dimethylphenyl)anthryl}]methyl)phenyl}benzene 
• 383175-98-2 C₆₉H₈₆O₁₆Si 

Relevant articles and documents

Synthesis of a Contrapositionally Substituted Cyclohexa- meta -phenylene: A Ready-to-Use Precursor for Cyclohexa- meta -phenylene-Based Materials

A contrapositionally substituted derivative of cyclohexa- meta -phenylene ([6]CMP) was synthesized by an intramolecular Yamamoto coupling reaction of an appropriate terphenyl unit containing a trimethylsilyl substituent. Iododesilylation of the trimethyls

Molecular assembly of a pyridine functionalized janusarene

We describe a janusarene derivative PyJ, which forms micrometer-scale one-dimensional metallo-supramolecular polymer through coordination driven self-assembly. PyJ is a well-preorganized dodecatopic pyridyl ligand built on a hexaphenylbenzene platform. The two-face structural feature of PyJ allows for a delicate control over multiple Py-Ag+-Py coordination interactions, leading to assembled structure of PyJ-Ag+, which was characterized by dynamic light scattering, atomic force microscopy, and transmission electron microscopy.

Para -C-H borylation of benzene derivatives by a bulky iridium catalyst

A highly para-selective aromatic C-H borylation has been accomplished. By a new iridium catalyst bearing a bulky diphosphine ligand, Xyl-MeO-BIPHEP, the C-H borylation of monosubstituted benzenes can be affected with para-selectivity up to 91%. This catalytic system is quite different from the usual iridium catalysts that cannot distinguish meta- and para-C-H bonds of monosubstituted benzene derivatives, resulting in the preferred formation of meta-products. The para-selectivity increases with increasing bulkiness of the substituent on the arene, indicating that the regioselectivity of the present reaction is primarily controlled by steric repulsion between substrate and catalyst. Caramiphen, an anticholinergic drug used in the treatment of Parkinsons disease, was converted into five derivatives via our para-selective borylation. The present [Ir(cod)OH]2/Xyl-MeO-BIPHEP catalyst represents a unique, sterically controlled, para-selective, aromatic C-H borylation system that should find use in streamlined, predictable chemical synthesis and in the rapid discovery and optimization of pharmaceuticals and materials.