2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
- Product Name
- 2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
- CAS No.
- 287944-10-9
- Chemical Name
- 2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
- Synonyms
- 1-Cyclopenteneboronic Acid Pinacol Ester;1-Cyclopentenylboronic acid pinacol este;Cyclopenten-1-ylboronic acid picol ester;1-Cyclopentenyl boronic acid pinacol ester;Cyclopentene-1-boronic acid, pinacol ester;Cyclopenten-1-ylboronic acid, pinacol ester;1-Cyclopentenyl-1-yl-boronic acid pinacol ester;2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE;1-Cyclopentenyl-4,4,5,5-TetraMethyl-1,3,2-Dioxaborolane;2-(1-Cyclopentenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
- CBNumber
- CB0844406
- Molecular Formula
- C11H19BO2
- Formula Weight
- 194.08
- MOL File
- 287944-10-9.mol
2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Property
- Boiling point:
- 210.0±33.0 °C(Predicted)
- Density
- 0.96±0.1 g/cm3(Predicted)
- refractive index
- 1.46
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- form
- liquid
- color
- colorless or yellow
- InChI
- InChI=1S/C11H19BO2/c1-10(2)11(3,4)14-12(13-10)9-7-5-6-8-9/h7H,5-6,8H2,1-4H3
- InChIKey
- JFTZVYKESKQING-UHFFFAOYSA-N
- SMILES
- O1C(C)(C)C(C)(C)OB1C1CCCC=1
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- C3385
- Product name
- 2-(1-Cyclopentenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $45
- Updated
- 2025/07/31
- Product number
- C3385
- Product name
- 2-(1-Cyclopentenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $152
- Updated
- 2025/07/31
- Product number
- C991473
- Product name
- Cyclopenten-1-ylboronicacid,pinacolester
- Packaging
- 1g
- Price
- $75
- Updated
- 2021/12/16
- Product number
- 268929
- Product name
- 1-Cyclopentenylboronic acid pinacol ester
- Packaging
- 250mg
- Price
- $333
- Updated
- 2021/12/16
- Product number
- C991473
- Product name
- Cyclopenten-1-ylboronicacid,pinacolester
- Packaging
- 100mg
- Price
- $45
- Updated
- 2021/12/16
2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Chemical Properties,Usage,Production
Synthesis
930-29-0
73183-34-3
287944-10-9
Example XIV: Synthesis of 2-cyclopent-1-enyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane Under argon protection, 4.31 g of 1-chloro-1-cyclopentene and 12.5 g of bis(pinacolato)diboron were dissolved in 160 mL of 1,4-dioxane, 8 g of potassium acetate was added, and argon purged for 5 min. Subsequently, 370 mg of tris(dibenzylideneacetylidene)dipalladium(0) ([Pd2(dba)3]) and 780 mg of 2-cyclohexylphosphino-2',4',6'-triisopropyl-1,1'-biphenyl were added, and the reaction mixture was heated to 80 °C for 3 hours. After completion of the reaction, it was cooled to room temperature, diluted with diethyl ether, the organic phase was washed with water and brine sequentially, and the organic phase was dried with anhydrous magnesium sulfate. The solvent was removed by evaporation under reduced pressure and the residue was ground with petroleum ether. The precipitate was collected by filtration and the mother liquor was evaporated under reduced pressure to obtain the product. Yield: 13.1 g (99% yield). Mass spectrum (EI): m/z = 194 [M]+.
References
[1] Patent: WO2011/101424, 2011, A1. Location in patent: Page/Page column 230-231
[2] Patent: US2012/46304, 2012, A1. Location in patent: Page/Page column 123
[3] Patent: WO2012/110599, 2012, A1. Location in patent: Page/Page column 230-231
[4] Patent: US2013/53404, 2013, A1. Location in patent: Paragraph 1781; 1782; 1783
[5] Journal of Organic Chemistry, 2012, vol. 77, # 7, p. 3543 - 3548
2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Preparation Products And Raw materials
Raw materials
Preparation Products
2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE Suppliers
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View Lastest Price from 2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE manufacturers
- Product
- 1-Cyclopentenylboronic acid pinacol ester 287944-10-9
- Price
- US $3.00-9.00/KG
- Min. Order
- 0.1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2025-07-02
- Product
- 2-CYCLOPENTENYL-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE 287944-10-9
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%-100%
- Supply Ability
- 1
- Release date
- 2018-08-10