ChemicalBook > CAS DataBase List > 2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE

2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE

Product Name
2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
CAS No.
402503-13-3
Chemical Name
2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
Synonyms
2-Benzofuranboronic Acid Pinacol Ester;Benzofuran-2-boronic acid,pinacol ester;Benzo[b]furan-2-boronicacidpinacolester;BENZOFURAN-2-YLBORONIC ACID PINACOL ESTER;Benzo[b]furan-2-boronicacidpinacolester96%;Benzo[b]furan-2-boronic acid pinacol ester 96%;2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE;2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-yl)Benzo[b]Furan;Benzofuran, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
CBNumber
CB82466239
Molecular Formula
C14H17BO3
Formula Weight
244.09
MOL File
402503-13-3.mol
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2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Property

Boiling point:
340.0±15.0 °C(Predicted)
Density 
1.10±0.1 g/cm3(Predicted)
storage temp. 
Inert atmosphere,Store in freezer, under -20°C
form 
solid
color 
Off-white to light yellow
InChI
InChI=1S/C14H17BO3/c1-13(2)14(3,4)18-15(17-13)12-9-10-7-5-6-8-11(10)16-12/h5-9H,1-4H3
InChIKey
GVWNFCUCNAWDNO-UHFFFAOYSA-N
SMILES
O1C2=CC=CC=C2C=C1B1OC(C)(C)C(C)(C)O1
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Safety

HS Code 
2932990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

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

TRC
Product number
B207713
Product name
Benzofuran-2-boronicacid,pinacolester
Packaging
100mg
Price
$45
Updated
2021/12/16
TRC
Product number
B207713
Product name
Benzofuran-2-boronicacid,pinacolester
Packaging
250mg
Price
$50
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB160558
Product name
Benzofuran-2-boronic acid, pinacol ester
Packaging
250mg
Price
$50
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB160558
Product name
Benzofuran-2-boronic acid, pinacol ester
Packaging
500mg
Price
$75
Updated
2021/12/16
Matrix Scientific
Product number
102297
Product name
Benzofuran-2-boronic acid pinacol ester
Purity
>95%
Packaging
500mg
Price
$93
Updated
2021/12/16
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2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Chemical Properties,Usage,Production

Synthesis

271-89-6

25015-63-8

402503-13-3

General procedure for the synthesis of benzofuran-2-boronic acid pinacol esters from 2,3-benzofuran and pinacolborane: According to the reaction scheme for the boronation of Example 9-aromatic five-membered heterocyclic rings (Fig. 2a), cobalt complex (0.01 mmol, selected from 1-4), 2-methylfuran (1 mmol), and pinacolborane (1 mmol) were added to a scintillation vial fitted with magnetic stirring bar. 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 stopper, followed by 1H and 13C NMR spectroscopy without further purification. Depending on the experimental requirements, the above reaction can also be carried out in 2 ml of tetrahydrofuran (THF). Figure 2a illustrates the percentage conversion of cobalt complexes 1-4, with the values in parentheses being the isolated yields. In addition, Figure 2b describes in detail the results of other boronation products achieved using cobalt complexes 2 and 3 under the same reaction conditions.

References

[1] Chemical Communications, 2003, # 23, p. 2924 - 2925
[2] Journal of the American Chemical Society, 2014, vol. 136, # 11, p. 4133 - 4136
[3] Patent: WO2015/89119, 2015, A1. Location in patent: Page/Page column 34
[4] Chemical Communications, 2003, # 23, p. 2924 - 2925
[5] ACS Catalysis, 2018, vol. 8, # 6, p. 5017 - 5022

2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Preparation Products And Raw materials

Raw materials

Preparation Products

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2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Suppliers

China 51 India 1 United Kingdom 2 United States 7 Global 61
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View Lastest Price from 2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE manufacturers

Henan Aochuang Chemical Co.,Ltd.
Product
2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE 402503-13-3
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2022-09-27
Career Henan Chemical Co
Product
2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE 402503-13-3
Price
US $1.00/KG
Min. Order
1KG
Purity
98%-100%
Supply Ability
1
Release date
2018-08-12

402503-13-3, 2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANERelated Search:

5-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1-BENZOFURAN 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[b]furan Benzofuran-7-boronic acid BENZOFURAN-5-BORONIC ACID BENZOFURAN-3-BORONIC ACID Benzofuran-2-boronic acid POTASSIUM BENZOFURAN-2-YLTRIFLUOROBORATE

  • Benzo[b]furan-2-boronic acid pinacol ester 96%
  • Benzofuran-2-boronic acid,pinacol ester
  • Benzo[b]furan-2-boronicacidpinacolester96%
  • Benzo[b]furan-2-boronicacidpinacolester
  • BENZOFURAN-2-YLBORONIC ACID PINACOL ESTER
  • 2-(BENZOFURAN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
  • Benzofuran, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
  • 2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-yl)Benzo[b]Furan
  • 2-Benzofuranboronic Acid Pinacol Ester
  • 402503-13-3