ChemicalBook >> CAS DataBase List >>1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

CAS No.
1238702-58-3
Chemical Name:
1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
Synonyms
1-Phenyl-1H-pyrazole-5-boronic Acid Pinacol Ester;(1-PHENYL-1H-PYRAZOL-5-YL)BORONIC ACID PINACOL ESTER;1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole;1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole;1H-Pyrazole, 1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
CBNumber:
CB32666111
Molecular Formula:
C15H19BN2O2
Molecular Weight:
270.13
MDL Number:
MFCD23135814
MOL File:
1238702-58-3.mol
MSDS File:
SDS
Last updated:2026-05-28 01:10:27
Product description Number Pack Size Price
1-Phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole NZB70258 2.5g $324.5
1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% OR471708 100mg $21
1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% OR471708 250mg $24
1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% OR471708 1g $56
1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% OR471708 5g $271
More product size

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole Properties

storage temp. under inert gas (nitrogen or Argon) at 2-8°C
Appearance Light yellow to yellow 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
HS Code  2933199090

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole price More Price(42)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth NZB70258 1-Phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole 1238702-58-3 2.5g $324.5 2026-06-04 Buy
Apolloscientific OR471708 1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% 1238702-58-3 100mg $21 2026-06-04 Buy
Apolloscientific OR471708 1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% 1238702-58-3 250mg $24 2026-06-04 Buy
Apolloscientific OR471708 1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% 1238702-58-3 1g $56 2026-06-04 Buy
Apolloscientific OR471708 1-Phenyl-1H-pyrazole-5-boronic acid pinacol ester >97% 1238702-58-3 5g $271 2026-06-04 Buy
Product number Packaging Price Buy
NZB70258 2.5g $324.5 Buy
OR471708 100mg $21 Buy
OR471708 250mg $24 Buy
OR471708 1g $56 Buy
OR471708 5g $271 Buy

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole Chemical Properties,Uses,Production

Synthesis

Pinacol

76-09-5

(1-phenyl-1H-pyrazol-5-yl)boronic acid

1238702-56-1

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

1238702-58-3

The general procedure for the synthesis of 1-phenyl-pyrazole-5-boronic acid pinacol ester from pinacol and the compound (CAS: 1238702-56-1) is as follows: with reference to Example 132, a mixture of 1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole and 1-phenyl-1H-pyrazole-5-boronic acid was room temperature was dissolved in toluene (86 mL). Subsequently, pinacol (5.39 g, 45.6 mmol) and boric acid (8.57 g, 45.6 mmol) were added. The reaction mixture was heated to 40 °C and the reaction was stirred at this temperature for 2 days. After completion of the reaction, the mixture was concentrated under reduced pressure and the residue was ground with hexane to afford pinacol ester of 1-phenyl-pyrazole-5-boronic acid (7.93 g, 64% yield) as a light yellow solid. The product was characterized by 1H NMR (DMSO-d6, 300 MHz): δ 1.23 (12H, s), 6.84 (1H, s), 7.34-7.59 (5H, m), 7.75 (1H, d, J = 1.9 Hz).

References

[1] Patent: US2010/197651, 2010, A1. Location in patent: Page/Page column 73-74
[2] Patent: US2013/150344, 2013, A1. Location in patent: Paragraph 0586; 0587
[3] Patent: US2013/137700, 2013, A1. Location in patent: Paragraph 0449; 0450
[4] Patent: US2013/137675, 2013, A1. Location in patent: Paragraph 0673; 0674

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 50)Suppliers
Supplier Tel Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806 sales@capot.com China 29640 60
Career Henan Chemica Co
+86-0371-86658258 +8613203830695 laboratory@coreychem.com China 30224 58
Coresyn Pharmatech Co., Ltd.
+86-571-86626709 +86-18157142896 cbc@coresyn.com China 9984 58
Shanghai Scochem Technology Co., Ltd
+86-021-33758897 +86-13701882790 sales@scochem.com China 1977 58
Amadis Chemical Company Limited
571-89925085 sales@amadischem.com China 131957 58
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14100 59
DKD Shijiazhuang Chemical Co., Ltd. 0311-67790228 15531158659 2361184479@qq.com China 298 62
Shanghai Topbiochem Technology Co., Ltd 021-58170097 info@topbiochem.com China 9520 58
Shanghai ShiXian Chemical Technology Co., Ltd. 13764359345 990877971@qq.com China 1836 50
Changsha Luxing Bio-Chem Technology Co., Ltd. 0731-88827538 15873153880 luxingbc@126.com China 1994 65

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole Spectrum

1-Phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole 1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (1-PHENYL-1H-PYRAZOL-5-YL)BORONIC ACID PINACOL ESTER 1-Phenyl-1H-pyrazole-5-boronic Acid Pinacol Ester 1H-Pyrazole, 1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 1238702-58-3