4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester

Product Name: 4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester
CAS No.: 1242770-50-8
Chemical Name: 4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester
Synonyms: 4-trifluoroMethyl-trans-beta-styrylboronic acid picol ester;4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester;(E)-4,4,5,5-TetraMethyl-2-(4-(trifluoroMethyl)styryl)-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-[(E)-2-[4-(trifluoromethyl)phenyl]ethenyl]-1,3,2-dioxaborolane;(E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane - [T90493];1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[(1E)-2-[4-(trifluoromethyl)phenyl]ethenyl]-
CBNumber: CB12552647
Molecular Formula: C15H18BF3O2
Formula Weight: 298.11
MOL File: 1242770-50-8.mol

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4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester Property

Melting point:: 60 °C(Solv: hexane (110-54-3); ethyl acetate (141-78-6))
Boiling point:: 282.9±50.0 °C(Predicted)
Density: 1.13±0.1 g/cm3(Predicted)
storage temp.: 2-8°C
Appearance: Light yellow to yellow Solid

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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

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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: T890120
Product name: (E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane
Packaging: 10mg
Price: $45
Updated: 2021/12/16

TRC

Product number: T890120
Product name: (E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane
Packaging: 50mg
Price: $175
Updated: 2021/12/16

ChemScene

Product number: CS-W000371
Product name: (E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane
Packaging: 100mg
Price: $64
Updated: 2021/12/16

ChemScene

Product number: CS-W000371
Product name: (E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane
Packaging: 250mg
Price: $102
Updated: 2021/12/16

ChemScene

Product number: CS-W000371
Product name: (E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane
Packaging: 1g
Price: $255
Updated: 2021/12/16

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4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester Chemical Properties,Usage,Production

Synthesis

705-31-7

25015-63-8

1242770-50-8

SIPrCuCl (C8) (4.9 mg, 5 mol%, 0.01 mmol), tris(tert-butyl)phosphinimine (1b) (2.2 mg, 5 mol%, 0.01 mmol), pinacolborane (1c) (28 mg, 0.22 mmol, 1.1 equiv), 4-ethynyl-α,α,α-trifluorotoluene (1) (0.2 mmol, 1 equiv), and benzene (0.2 mg, 0.1 equiv) were added to oven-dried, screw-capped vials in a nitrogen-ambient glove box with an oxygen and moisture content ≤0.1 ppm. 0.22 mmol, 1.1 equiv), 4-ethynyl-α,α,α-trifluorotoluene (1) (0.2 mmol, 1 equiv), and benzene (2 mL, 0.1 M). The formed reaction mixture was stirred in a glove box for 13 to 15 hours. Subsequently, the dark brown reaction mixture was removed from the glove box and the solvent was removed by rotary evaporator. To the reaction residue, mixed solvent (hexane:ethyl acetate) was added as eluent and stirred at room temperature for about 30 minutes until precipitation was formed. The mixture was further filtered through a short silica gel pad to obtain a colorless filtrate. After removal of the organic solvent under reduced pressure, the target product (E)-4,4,5,5-tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane was obtained by vacuum drying and did not require further purification.

References

[1] Advanced Synthesis and Catalysis, 2018, vol. 360, # 19, p. 3649 - 3654
[2] Organic Letters, 2017, vol. 19, # 16, p. 4323 - 4326
[3] Tetrahedron Letters, 2017, vol. 58, # 15, p. 1523 - 1527
[4] Chemistry - An Asian Journal, 2013, vol. 8, # 1, p. 50 - 54
[5] Chemistry Letters, 2013, vol. 42, # 10, p. 1128 - 1130

4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester Preparation Products And Raw materials

Raw materials

Preparation Products

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1242770-50-8, 4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol esterRelated Search:

Boric acid

4-trifluoroMethyl-trans-beta-styrylboronic acid pinacol ester

(E)-4,4,5,5-TetraMethyl-2-(4-(trifluoroMethyl)styryl)-1,3,2-dioxaborolane

4-trifluoroMethyl-trans-beta-styrylboronic acid picol ester

4,4,5,5-tetramethyl-2-[(E)-2-[4-(trifluoromethyl)phenyl]ethenyl]-1,3,2-dioxaborolane

1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[(1E)-2-[4-(trifluoromethyl)phenyl]ethenyl]-

(E)-4,4,5,5-Tetramethyl-2-(4-(trifluoromethyl)styryl)-1,3,2-dioxaborolane - [T90493]

1242770-50-8