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ChemicalBook >> CAS DataBase List >>2-Methylnaphthalene-1-boronic Acid Pinacol Ester

2-Methylnaphthalene-1-boronic Acid Pinacol Ester

CAS No.
312303-48-3
Chemical Name:
2-Methylnaphthalene-1-boronic Acid Pinacol Ester
Synonyms
2-Methylnaphthalene-1-boronic Acid Pinacol Ester;4,4,5,5-tetramethyl-2-(2-methyl-1-naphthalenyl)-1,3,2-Dioxaborolane;4,4,5,5-tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane;1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(2-methyl-1-naphthalenyl)-
CBNumber:
CB82673138
Molecular Formula:
C17H21BO2
Molecular Weight:
268.16
MDL Number:
MFCD22189526
MOL File:
312303-48-3.mol
MSDS File:
SDS
Last updated:2026-05-28 05:53:53
Product description Number Pack Size Price
4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% T59019 100mg $19
4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% T59019 250mg $25
4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% T59019 1g $60
4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% T59019 5g $300
4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% T59019 10g $1230
More product size

2-Methylnaphthalene-1-boronic Acid Pinacol Ester Properties

storage temp. 2-8°C
Appearance White to off-white Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

2-Methylnaphthalene-1-boronic Acid Pinacol Ester price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Synthonix T59019 4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% 312303-48-3 100mg $19 2026-05-06 Buy
Synthonix T59019 4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% 312303-48-3 250mg $25 2026-05-06 Buy
Synthonix T59019 4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% 312303-48-3 1g $60 2026-05-06 Buy
Synthonix T59019 4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% 312303-48-3 5g $300 2026-05-06 Buy
Synthonix T59019 4,4,5,5-Tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 95+% 312303-48-3 10g $1230 2026-05-06 Buy
Product number Packaging Price Buy
T59019 100mg $19 Buy
T59019 250mg $25 Buy
T59019 1g $60 Buy
T59019 5g $300 Buy
T59019 10g $1230 Buy

2-Methylnaphthalene-1-boronic Acid Pinacol Ester Chemical Properties,Uses,Production

Synthesis

2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

61676-62-8

1-BROMO-2-METHYLNAPHTHALENE

2586-62-1

2-Methylnaphthalene-1-boronic Acid Pinacol Ester

312303-48-3

The general procedure for the synthesis of 4,4,5,5-tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolanes from isopropanol pinacol borate and 1-bromo-2-methylnaphthalene was as follows: 1,2-dibromoethane (ca. 0.3 ml) was added dropwise to 1000 cm3 THF solution containing 6.10 g (0.25 mol) of magnesium chips. The mixture was stirred for 10 minutes and then continued to stir vigorously for 3.5 hours at room temperature. Subsequently, 55.3 g (0.25 mol) of 1-bromo-2-methylnaphthalene was added and 46.5 g (250 mmol) of 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborole was added all at once. The reaction mixture was stirred for 15 minutes and then the reaction was terminated by pouring into 1000 cm3 cold water. The product was extracted with 3 x 300 ml of ethyl acetate, the organic layers were combined, washed sequentially with water and brine, and dried over anhydrous MgSO The solvent was removed by evaporation under reduced pressure to give a white solid. The solid was washed with 2×75 ml pentane and dried in vacuum to give the product 47.3 g in 70% yield. Elemental analysis (C17H21BO2) Calculated value: C, 76.14; H, 7.89. Measured value: C, 76.21; H, 7.96.1H NMR (CDCl) δ: 8.12 (m, 1H, 8-H), 7.77 (m, 1H, 5-H), 7.75 (d, J=8.4 Hz, 1H, 4-H), 7.44 (m, 1H. 7-H), 7.38 (m, 1H, 6-H), 7.28 (d, J=8.4Hz, 1H, 3-H), 2.63 (s, 3H, 2-Me), 1.48 (s, 12H, CMeCMe).

References

[1] Patent: WO2015/134213, 2015, A1. Location in patent: Page/Page column 42; 43
[2] Patent: WO2018/5201, 2018, A1. Location in patent: Page/Page column 27

2586-62-1
73183-34-3
312303-48-3
Synthesis of 2-Methylnaphthalene-1-boronic Acid Pinacol Ester from 1-BROMO-2-METHYLNAPHTHALENE and Bis(pinacolato)diboron

2-Methylnaphthalene-1-boronic Acid Pinacol Ester Preparation Products And Raw materials

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2-Methylnaphthalene-1-boronic Acid Pinacol Ester Spectrum

312303-48-3(2-Methylnaphthalene-1-boronic Acid Pinacol Ester)Related Search:

2-Methylnaphthalene-1-boronic Acid Pinacol Ester 4,4,5,5-tetramethyl-2-(2-methylnaphthalen-1-yl)-1,3,2-dioxaborolane 4,4,5,5-tetramethyl-2-(2-methyl-1-naphthalenyl)-1,3,2-Dioxaborolane 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(2-methyl-1-naphthalenyl)- 312303-48-3
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