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1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester

CAS No.
864770-82-1
Chemical Name:
1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester
Synonyms
1-Boc-3-methylindazole-5-boronic Acid Pinacol Ester;1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester;1-N-Boc-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-3-Methyl-indazole;(1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER;3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate;Tert-butyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indazole-1-carboxylate;tert-butyl 3-Methyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate;3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylic acid 1,1-dimethylethyl ester;1H-Indazole-1-carboxylic acid, 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, 1,1-dimethylethyl ester
CBNumber:
CB42499635
Molecular Formula:
C19H27BN2O4
Molecular Weight:
358.24
MDL Number:
MFCD13195073
MOL File:
864770-82-1.mol
MSDS File:
SDS
Last updated:2026-05-28 02:05:48
Product description Number Pack Size Price
(1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 97% 52555 0.25G $59
(1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 97% 52555 1G $167
(1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 97% 52555 5G $677
1-N-Boc-3-Methylindazole-5-boronic acid pinacol ester 091121 250.00mg $62
1-N-Boc-3-Methylindazole-5-boronic acid pinacol ester 091121 1.00g $85
More product size

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester Properties

Boiling point 476℃
Density 1.12
Flash point 242℃
storage temp. under inert gas (nitrogen or Argon) at 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-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501
HS Code  2933998090

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester price More Price(41)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
AstaTech 52555 (1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 97% 864770-82-1 0.25G $59 2026-04-30 Buy
AstaTech 52555 (1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 97% 864770-82-1 1G $167 2026-04-30 Buy
AstaTech 52555 (1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 97% 864770-82-1 5G $677 2026-04-30 Buy
Matrix Scientific 091121 1-N-Boc-3-Methylindazole-5-boronic acid pinacol ester 864770-82-1 250.00mg $62 2026-05-18 Buy
Matrix Scientific 091121 1-N-Boc-3-Methylindazole-5-boronic acid pinacol ester 864770-82-1 1.00g $85 2026-05-18 Buy
Product number Packaging Price Buy
52555 0.25G $59 Buy
52555 1G $167 Buy
52555 5G $677 Buy
091121 250.00mg $62 Buy
091121 1.00g $85 Buy

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester Chemical Properties,Uses,Production

Application

1-N-BOC-3-methylindazole-5-boronic acid pinacol ester is an organic synthesis intermediate and pharmaceutical intermediate that can be used in laboratory research and development processes and chemical production processes.

Synthesis

1-BOC-5-BROMO-INDAZOLE

552331-49-4

Bis(pinacolato)diboron

73183-34-3

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester

864770-82-1

Potassium acetate (4.73 g, 48.3 mmol) and Pd(dppf)Cl2 (0.66 g, 0.81 mmol) in anhydrous DMF (60 mL) were added to tert-butyl 5-bromo-3-methyl-1H-indazole-1-carboxylate (5.00 g, 16.1 mmol) and pinacol ester of bisboronic acid (4.49 g, 17.7 mmol). The mixture was placed in a vial with a rubber-lined screw cap and degassed by three vacuum/nitrogen cycles. Subsequently, the suspension was heated with stirring at 100 °C for 2 h under nitrogen protection. Upon completion of the reaction, the mixture was cooled to room temperature, mixed with saturated aqueous sodium bicarbonate solution (100 mL) and extracted with ethyl acetate (2 x 150 mL). The organic phases were combined, dried over anhydrous sodium sulfate and concentrated to give the crude product. The crude product was purified by silica gel column chromatography using gradient elution with ethyl acetate/hexane (0% to 15%) to afford the target product tert-butyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate as an oil (5.55 g, 96% yield).LCMS (+APCI) m/z. 499 (M+H).

References

[1] Patent: US2008/153813, 2008, A1. Location in patent: Page/Page column 24
[2] Patent: WO2005/85227, 2005, A1. Location in patent: Page/Page column 37; 76
[3] Bioorganic and Medicinal Chemistry Letters, 2010, vol. 20, # 2, p. 673 - 678
[4] Patent: US2008/153813, 2008, A1. Location in patent: Page/Page column 22-23
[5] Patent: US2008/153813, 2008, A1. Location in patent: Page/Page column 23

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester Preparation Products And Raw materials

Global( 63)Suppliers
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Capot Chemical Co.,Ltd.
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Aceschem Inc.
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Henan Fengda Chemical Co., Ltd
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View Lastest Price from 1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester pictures 2019-07-06 1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester
864770-82-1
$1.00 1KG 98%-100% 1 Career Henan Chemical Co

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester Spectrum

1-N-Boc-3-methyl-indazole-5-boronic acid pinacol ester 3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate 3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylic acid 1,1-dimethylethyl ester tert-butyl 3-Methyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate (1-(TERT-BUTOXYCARBONYL)-3-METHYL-1H-INDAZOL-5-YL)BORONIC ACID PINACOL ESTER 1-N-Boc-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-3-Methyl-indazole Tert-butyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indazole-1-carboxylate 1H-Indazole-1-carboxylic acid, 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, 1,1-dimethylethyl ester 1-Boc-3-methylindazole-5-boronic Acid Pinacol Ester 864770-82-1