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| CAS No.: | 13061-96-6 |
|---|---|
| Name: | Methylboronic acid |
| Molecular Structure: | |
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|
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| Formula: | CH5BO2 |
| Molecular Weight: | 59.8605 |
| Synonyms: | Methaneboronicacid (6CI,7CI,8CI);Boronicacid, methyl- (9CI);Methaneboronic acid; |
| EINECS: | 629-203-8 |
| Density: | 0.965 g/cm3 |
| Melting Point: | 91-94 °C |
| Boiling Point: | 141.745 °C at 760 mmHg |
| Flash Point: | 39.526 °C |
| Solubility: | Soluble in water. |
| Appearance: | White to light yellow crystal powder |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 26-36 |
| PSA: | 40.46000 |
| LogP: | -0.91100 |
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- 73441-42-6METHYL-5-CHLORO-2,2-DIMETHYLVALERATE
- 13292-87-0
dimethyl sulfide borane
- 13061-96-6
dihydroxy-methyl-borane
| Conditions | Yield |
|---|---|
| With carbon monoxide; water In tetrahydrofuran byproducts: S(CH3)2; a soln. of BH3*S(CH3)2 flushed with CO; a soln. of catalyst added, stirred rapidly and maintained at 25°C for 12-16 h; water added; evapd.; | 94% |
| Conditions | Yield |
|---|---|
| With hydrogenchloride In diethyl ether byproducts: LiCl, i-propanol; (N2); a soln. of B(O-i-Pr)3 cooled with a dry ice-acetone bath; CH3Li added slowly and stirred for 1 h; allowed to warm to room temp. with stirring for 3 h; cooled to 0°C; a soln. of HCl in ether added and stirred for 0.5 h; decanted; hydrolyzed with water; distd.; dried; | 79% |
| Conditions | Yield |
|---|---|
| With diethyl ether Zers. des Reaktionsproduktes durch angesaeuertes Wasser, wobei Verseifung des intermediaer gebildeten Methylborsaeureesters stattfindet; |
| Conditions | Yield |
|---|---|
| With diethyl ether und anschliessend mit wss.H2SO4; |
| Conditions | Yield |
|---|---|
| Zers. des entstandenen 'Methylborsaeuredimethylesters' CH3B(OCH3)2 durch angesaeuertes Wasser; |
- 17933-16-3
dibromomethylborane
- 13061-96-6
dihydroxy-methyl-borane
| Conditions | Yield |
|---|---|
| With water | |
| With water |
- 5314-85-2
2,4,6-Trimethyl-[1,3,5,2,4,6]triazatriborinane
- 13061-96-6
dihydroxy-methyl-borane
| Conditions | Yield |
|---|---|
| With water at 150℃; |
- 16321-94-1
1,2-Dimethylboran
- 13061-96-6
dihydroxy-methyl-borane
| Conditions | Yield |
|---|---|
| With water at 150℃; |
- 7647-01-0
hydrogenchloride
- 877-07-6
hexamethylborazine
A
- 13061-96-6
dihydroxy-methyl-borane
B
- 593-51-1
methylamine hydrochloride
| Conditions | Yield |
|---|---|
| at 100℃; Hydrolysis; |
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Specification
Methylboronic acid is an organic compound with the formula CH5BO2, and its systematic name is the same with the product name. With the CAS registry number 13061-96-6, it is also named as Methaneboronic acid. It belongs to the product categories of Substituted Boronic Acids; API intermediates; Boronic acid; Organoborons; Chiral Chemicals; Alkyl. In addition, the molecular weight is 59.86. It is used as boron compounds intermediates in organic synthesis. This chemical is stable at common pressure and temperature, and it should be sealed and stored in a cool, ventilated and dry place. Moreover, it should be protected from oxides, bases heat and air.
Physical properties of Methylboronic acid are: (1)ACD/LogP: -0.212; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.21; (4)ACD/LogD (pH 7.4): -0.21; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 18.27; (8)ACD/KOC (pH 7.4): 18.22; (9)#H bond acceptors: 2; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 40.46 Å2; (13)Index of Refraction: 1.345; (14)Molar Refractivity: 13.181 cm3; (15)Molar Volume: 62.004 cm3; (16)Polarizability: 5.225×10-24cm3; (17)Surface Tension: 27.77 dyne/cm; (18)Density: 0.965 g/cm3; (19)Flash Point: 39.526 °C; (20)Enthalpy of Vaporization: 44.145 kJ/mol; (21)Boiling Point: 141.745 °C at 760 mmHg; (22)Vapour Pressure: 2.35 mmHg at 25°C.
Uses of Methylboronic acid: it can be used to produce 2,4-dichloro-6-methyl-pyridin-3-ylamine at the temperature of 100 °C. It will need reagents K2CO3, Pd(PPh3)2Cl2 and solvent dimethylformamide with the reaction time of 24 hours. The yield is about 85%.
When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need to wear suitable protective clothing.
You can still convert the following datas into molecular structure:
(1)SMILES: OB(O)C
(2)Std. InChI: InChI=1S/CH5BO2/c1-2(3)4/h3-4H,1H3
(3)Std. InChIKey: KTMKRRPZPWUYKK-UHFFFAOYSA-N