ChemicalBook > CAS DataBase List > 2-Methylfurane-5-boronic acid pinacol ester

2-Methylfurane-5-boronic acid pinacol ester

Product Name
2-Methylfurane-5-boronic acid pinacol ester
CAS No.
338998-93-9
Chemical Name
2-Methylfurane-5-boronic acid pinacol ester
Synonyms
5-Methylfuran-2-boronic acid p;5-Methyl-2-furanboronic acid pinacol ester;2-Methylfurane-5-boronic acid pinacol ester;5-Methylfuran-2-boronic acid pinacol ester 95%;(5-Methylfuran-2-yl)boronic Acid Pinacol Ester;2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan;2-(5-Methyl-2-furanyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(5-methyl-2-furanyl)-;5-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxoborolan-2-yl)furan, 2-(5-Methylfur-2-yl)-4,4,5;5-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxoborolan-2-yl)furan, 2-(5-Methylfur-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
CBNumber
CB9969126
Molecular Formula
C11H17BO3
Formula Weight
208.06
MOL File
338998-93-9.mol
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2-Methylfurane-5-boronic acid pinacol ester Property

Melting point:
217°
Boiling point:
277.8±28.0 °C(Predicted)
Density 
1.023 g/mL at 25 °C
refractive index 
n20/D1.476
storage temp. 
2-8°C
form 
clear liquid
color 
Light yellow to Yellow to Orange
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Safety

WGK Germany 
3
HS Code 
2932190090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
680109
Product name
5-Methyl-2-furanboronic acid pinacol ester
Purity
95%
Packaging
1g
Price
$64.6
Updated
2023/06/20
Sigma-Aldrich
Product number
680109
Product name
5-Methyl-2-furanboronic acid pinacol ester
Purity
95%
Packaging
10g
Price
$242
Updated
2022/05/15
TCI Chemical
Product number
T3582
Product name
4,4,5,5-Tetramethyl-2-(5-methylfuran-2-yl)-1,3,2-dioxaborolane
Purity
>97.0%(GC)(T)
Packaging
1g
Price
$27
Updated
2025/07/31
TCI Chemical
Product number
T3582
Product name
4,4,5,5-Tetramethyl-2-(5-methylfuran-2-yl)-1,3,2-dioxaborolane
Purity
>97.0%(GC)(T)
Packaging
5g
Price
$80
Updated
2025/07/31
TRC
Product number
M226385
Product name
5-Methyl-2-furanboronic acid pinacol ester
Packaging
10g
Price
$275
Updated
2021/12/16
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2-Methylfurane-5-boronic acid pinacol ester Chemical Properties,Usage,Production

Uses

5-Methyl-2-furanboronic Acid Pinacol Ester is used as a reagent for the borylation of furans, pyrroles and other organic reactions.

Synthesis

534-22-5

25015-63-8

338998-93-9

The general procedure for the synthesis of 2-methylfuran-5-boronic acid pinacol ester from 2-methylfuran and pinacolborane is as follows: according to the reaction scheme for the boronation of Example 9-aromatic five-membered heterocyclic rings (Fig. 2a), to a scintillation vial fitted with a magnetic stirring bar were added a cobalt complex of 1-4,2-methylfuran (0.01 mmol), 2-methylfuran (1 mmol) and pinacolborane ( 1 mmol). The reaction process was monitored by analyzing an aliquot of the mixture by GC-FID. The reaction mixture was stirred at room temperature until the reaction was complete and subsequently quenched by exposure to air. The resulting solid was dissolved in CDCl3 and filtered through a Pasteur pipette fitted with a silicone plug, followed by 1H and 13C NMR spectroscopy without further purification. If the reaction conditions need to be adjusted, the above reaction can be carried out in 2 ml of tetrahydrofuran (THF). Figure 2(a) demonstrates the percentage conversion of cobalt complexes 1-4, and the values in parentheses are the isolated yields. In addition, Figure 2(b) describes in detail the other boronation products achieved using cobalt complexes 2 and 3 according to the aforementioned reaction parameters.

References

[1] Patent: WO2015/89119, 2015, A1. Location in patent: Page/Page column 34
[2] ACS Catalysis, 2018, vol. 8, # 6, p. 5017 - 5022
[3] Journal of the American Chemical Society, 2014, vol. 136, # 11, p. 4133 - 4136
[4] Chemistry - An Asian Journal, 2010, vol. 5, # 7, p. 1657 - 1666
[5] Science, 2015, vol. 349, # 6247, p. 513 - 516

2-Methylfurane-5-boronic acid pinacol ester Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2-Methylfurane-5-boronic acid pinacol ester manufacturers

Career Henan Chemical Co
Product
2-Methylfurane-5-boronic acid pinacol ester 338998-93-9
Price
US $0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
150KG
Release date
2019-07-01

338998-93-9, 2-Methylfurane-5-boronic acid pinacol esterRelated Search:

Propyleneglycol alginate EPA 2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate 2-Methylfuran Dimethyl succinate Methyl acrylate Bis(pinacolato)diboron Tris(trimethylsilyl)phosphate 3-Furanboronic acid 5-METHYLFURAN-2-BORONIC ACID 2-Furanboronic acid pinacol ester 2-Furanboronic acid 2-Methylfurane-5-boronic acid pinacol ester

  • 2-Methylfurane-5-boronic acid pinacol ester
  • 5-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxoborolan-2-yl)furan, 2-(5-Methylfur-2-yl)-4,4,5
  • 5-Methyl-2-furanboronic acid pinacol ester
  • 5-Methylfuran-2-boronic acid p
  • 5-Methylfuran-2-boronic acid pinacol ester 95%
  • 5-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxoborolan-2-yl)furan, 2-(5-Methylfur-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
  • 2-(5-Methyl-2-furanyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
  • 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(5-methyl-2-furanyl)-
  • (5-Methylfuran-2-yl)boronic Acid Pinacol Ester
  • 2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan
  • 338998-93-9