55499-43-9

Basic information

• Product Name: 3,4-Dimethylphenylboronic acid
• Synonyms: 3,4-DIMETHYLBENZENEBORONIC ACID;3,4-diemthylphenylboronic acid;3,4-Dimethylbenzeneboronic acid, 98+%;3,4-Dimethylphenylboronic acid,97%;3,4-Dimethylphenylboronic acid ,98%;3,4-Dimethylphenylbo;3,4-Dimethylphenylboronic acid, May contain varying amounts of anhydride, 97%;B-(3,4-DiMethylphenyl)boronic acid
• CAS NO: 55499-43-9
• Molecular Formula: C₈H₁₁BO₂
• Molecular Weight: 149.98
• Product Categories: blocks;BoronicAcids;Boronic acids;Heterocyclic Compounds;Boronic Acid;Aryl;Organoborons
• Mol File: 55499-43-9.mol
• Article Data: 6

Chemical Properties

• Melting Point: 220°C
• Boiling Point: 304.9 °C at 760 mmHg
• Flash Point: 138.2 °C
• Appearance: White to slightly beige/Powder
• Density: 1.07 g/cm³
• Vapor Pressure: 0.000372mmHg at 25°C
• Refractive Index: 1.523
• Storage Temp.: 0-6°C
• Solubility: soluble in Methanol
• PKA: 8.89±0.10(Predicted)
• BRN: 2963858
• CAS DataBase Reference: 3,4-Dimethylphenylboronic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-Dimethylphenylboronic acid(55499-43-9)
• EPA Substance Registry System: 3,4-Dimethylphenylboronic acid(55499-43-9)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 36/37/38-22-41-37/38
• Safety Statements: 37/39-26-36/37-39
• HazardClass: IRRITANT
• Hazardous Substances Data: 55499-43-9(Hazardous Substances Data)

Usage

Chemical Properties

Off-white Cryst

Uses

suzuki reaction

InChI:InChI=1/C8H11BO2/c1-6-3-4-8(9(10)11)5-7(6)2/h3-5,10-11H,1-2H3

Upstream product

• 16557-41-8 3,4-(CH₃)2C₆H₃BCl₂ 
• 5419-55-6 Triisopropyl borate 
• 583-71-1 4-bromo-o-xylene 
• 95-64-7 4-amino-o-xylene 

Downstream Products

• 124129-44-8 tris(3.4-dimethyl phenyl)boroxine 
• 496850-10-3 methyl 4-amino-3-chloro-6-(3,4-dimethylphenyl)pyridine-2-carboxylate 
• 1015760-68-5 1-(8-(3,4-dimethylphenyl)-3,4-dihydroquinolin-1(2H)-yl)ethanone 
• 208390-39-0 (CH₃)2C₆H₃BO₂C₃H₆ 
• 1100648-18-7 6-(3,4-dimethylphenyl)-2-chloronicotinic acid 
• 1235467-35-2 3',4'-dimethyl-4-(4-(morpholine-4-carbonyl)phenylamino)biphenyl-3-carbonitrile 
• 22884-95-3 3,4-dimethylbenzonitrile 
• 1246851-66-0 4-(tert-butyl)-2-(3,4-dimethylphenyl)pyridine 
• 1520075-39-1 tert-butyl (E)-3-(3,4-dimethylphenyl)acrylate 
• 1601392-85-1 C₂₈H₂₅O₃P 
• 1601392-67-9 C₂₆H₂₃OP 
• 1637759-05-7 N-tert-butyl-4-(3,4-dimethylphenyl)-4-(4-methoxyphenyl)-2-oxobutanamide 
• 1637758-57-6 (S)-N-tert-butyl-4-(3,4-dimethylphenyl)-4-(4-methoxyphenyl)-2-oxobutanamide 

Relevant articles and documents

LIQUID CRYSTAL COMPOUND AND LIQUID CRYSTAL COMPOSITION INCLUDING THE SAME

PROBLEM TO BE SOLVED: To provide a new liquid crystal compound having low-temperature stability. SOLUTION: The present invention provides a liquid crystal compound shown by formula I. (R1 and R2 independently represent F, H, a C1-15 linear alkyl group, a C3-15 branched alkyl group or the like; R3 is a C1-8 linear alkyl group or a C3-8 branched alkyl group; n is an integer of 0-4; ring A1 is a 1,4-phenylene group or a 1,4-cyclohexylene group; ring A2 and ring A3 independently represent a 1,4-phenylene group, a 1,4-cyclohexylene group or the like; Z1 and Z2 independently represent a single bond, -CH2-CH2- or the like). SELECTED DRAWING: None COPYRIGHT: (C)2019,JPO&INPIT

Under the mellow promotion aromatic amine boronise produced by the reaction of an aryl boronic acid and aryl borate method

The invention discloses a method for preparation of aryl boronic acid and aryl borate by alcohol-promoted boronation reaction of aromatic amine, the aromatic amine which is easy to get and cheap is used as a raw material, a diboron compound is used as a boron source, a nitrite is used as a diazotization reagent, and the aryl boronic acid and aryl borate are obtained by alcohol-promoted reaction at room temperature in no presence of a catalyst. The method has the advantages of simple operation, mild reaction conditions, no presence of a metal catalyst, reduction of the production cost, high product yield, tolerance to different functional groups on aryl, and a wide adaptive range.

Multiple C-H activations to construct biologically active molecules in a process completely free of organohalogen and organometallic components

(Chemical Equation Presented) Step by step: Highly selective cross dehydrogenase arylation of acetanilides was developed to construct biaryls under mild condition. With this method, different aryl C-H bonds were activated in sequential reactions to construct functionalized carbazoles (see scheme), which are present as key structural units in various biological molecules and organic optical materials.