| Identification | Back Directory | [Name]
4-(ethoxycarbonylmethyl)phenylboronic acid, pinaco | [CAS]
859169-20-3 | [Synonyms]
4-(ethoxycarbonylmethyl)phenylboronic acid, pinaco
Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-
Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)
(4-(2-ETHOXY-2-OXOETHYL)PHENYL)BORONIC ACID PINACOL ESTER
Ethyl 2-(4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetate
2-[(4-Ethoxycarbonylmethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Ethyl 2-(4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-yl)Phenyl)Acetate,>98%
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzeneacetic acid ethyl ester
ETHYL 2-(4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)PHENYL)ACETATE（WS202804）
2-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetic Acid Ethyl Ester
Benzeneacetic acid, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-, ethyl ester
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-benzeneacetic acid ethyl ester 97% | [Molecular Formula]
C16H23BO4 | [MDL Number]
MFCD08704684 | [MOL File]
859169-20-3.mol | [Molecular Weight]
290.165 |
| Chemical Properties | Back Directory | [Boiling point ]
377.7±25.0 °C(Predicted) | [density ]
1.06±0.1 g/cm3(Predicted) | [storage temp. ]
under inert gas (nitrogen or Argon) at 2-8°C | [form ]
clear liquid | [color ]
Colorless to Light yellow to Light orange |
| Hazard Information | Back Directory | [Uses]
4-Ethoxycarbonylmethylphenylboronic acid, pinacol ester | [Synthesis]
GENERAL STEPS: Ethyl (4-bromophenyl)acetate (100 g, 411 mmol), bis(pinacolato)diboron (125.4 g, 493.7 mmol), and potassium acetate (125.4 g, 493.7 mmol) were added to a 2L round bottom flask. 1,4-dioxane (1 L) was added and stirred under nitrogen protection for 15 min. Subsequently, [1,1'-bis(diphenylphosphino)ferrocene]palladium(II) dichloride dichloromethane complex (3.36 g, 4.11 mmol) was added, and the reaction mixture was heated in an oil bath at 100 °C for 2 hours. The reaction process was monitored by analytical HPLC. After completion of the reaction, 1,4-dioxane was removed by concentration under reduced pressure and the residue was dissolved in ethyl acetate. The solution was filtered through a silica gel column (6 x 4 in.) and ethyl acetate (1.5 L) was used as eluent to afford ethyl [4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetate (117 g, 98% yield).1H NMR (400 MHz, DMSO) δ ppm: 7.63 (d, 2H, J=8 Hz). 7.27 (d, 2H, J=8Hz), 4.07 (q, 2H, J=7Hz), 3.68 (s, 2H), 1.28 (s, 12H), 1.16 (t, 3H, J=7Hz). | [References]
[1] Patent: WO2006/86609, 2006, A2. Location in patent: Page/Page column 152-153
[2] Patent: US2014/206686, 2014, A1. Location in patent: Paragraph 0452-0454
[3] Journal of Medicinal Chemistry, 2012, vol. 55, # 17, p. 7920 - 7939,20
[4] Patent: WO2013/189865, 2013, A1. Location in patent: Page/Page column 30
[5] Patent: US2012/295874, 2012, A1. Location in patent: Page/Page column 230 |
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