| Identification | More | [Name]
5-Formyl-2-thiopheneboronic acid | [CAS]
4347-33-5 | [Synonyms]
(5-FORMYL-2-THIENYL)BORONIC ACID
5-FORMYL-2-THIOPHENEBORONIC ACID
5-FORMYLTHIEN-2-YLBORONIC ACID
5-FORMYLTHIENYL-2-BORONIC ACID
5-FORMYLTHIOPHEN-1-BORONIC ACID
5-FORMYLTHIOPHEN-2-BORONIC ACID
5-FORMYLTHIOPHEN-2-YLBORONIC ACID
5-FORMYLTHIOPHENE-2-BORONIC ACID
AKOS BRN-0235
5-Formylthiophene-2-Boronic
5-Formyl-2-thiopheneboronic Acid (contains varying amounts of Anhydride) | [Molecular Formula]
C5H5BO3S | [MDL Number]
MFCD02093666 | [Molecular Weight]
155.97 | [MOL File]
4347-33-5.mol |
| Questions And Answer | Back Directory | [Synthesis]
5-Aldehyde-2-thiophene borate ester was synthesized using 5-bromothiophene carboxaldehyde as a raw material, pinacol diboronate [B2(pin)2] as a boron reagent, and K3PO4·7H2O as a base, under the catalysis of chloro(2-dicyclohexylphosphino-2,4,6-triisopropyl-1,1-biphenyl)[2-(2-amino-1,1-biphenyl)]palladium(II) (Xphos-Pd-G2) and 2-dicyclohexylphosphino-2,4,6-triisopropylbiphenyl (Xphos). The target compound, 5-Formyl-2-thiopheneboronic acid, was then prepared by hydrolysis. The synthetic reaction formula for 5-Formyl-2-thiopheneboronic acid is shown in the figure below:  |
| Chemical Properties | Back Directory | [Appearance]
White to orange powder | [Melting point ]
132-135 °C (lit.) | [Boiling point ]
395.1±52.0 °C(Predicted) | [density ]
1.41±0.1 g/cm3(Predicted) | [storage temp. ]
Keep Cold | [solubility ]
soluble in Methanol | [form ]
Powder or Cyrstals | [pka]
7.23±0.53(Predicted) | [color ]
White | [Sensitive ]
Air Sensitive | [InChI]
InChI=1S/C5H5BO3S/c7-3-4-1-2-5(10-4)6(8)9/h1-3,8-9H | [InChIKey]
DEQOVKFWRPOPQP-UHFFFAOYSA-N | [SMILES]
B(C1SC(C=O)=CC=1)(O)O | [CAS DataBase Reference]
4347-33-5(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,C | [Risk Statements ]
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [HazardClass ]
IRRITANT, KEEP COLD | [HS Code ]
29339900 | [Storage Class]
11 - Combustible Solids |
|
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