2-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzonitrile Property

Boiling point:

368.7±35.0 °C(Predicted)

Density 

1.05±0.1 g/cm3(Predicted)

storage temp. 

2-8°C

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

P233Keep container tightly closed.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304IF INHALED:

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P340Remove victim to fresh air and keep at rest in a position comfortable for breathing.

P362Take off contaminated clothing and wash before reuse.

P403Store in a well-ventilated place.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

2-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzonitrile Chemical Properties,Usage,Production

Synthesis

A mixture of dichloro[1 ,1 ,'-bis(diphenylphosphino)ferrocene] palladium (II) dichloromethane adduct (2.12 g, 2.55 mmol), potassium acetate (7.66 g, 76.5 mmol), and bis(pinacolato) diboron (7.12 g, 28.1 mmol) was flushed with nitrogen. 1 ,2- dimethoxyethane (130 ml ) and 4-bromo-2-methylbenzonitrile (5.00 g, 25.5 mmol) were added. The reaction was stirred at 80°C for 5 h. The reaction was cooled to room temperature and filtered through celite. The filtrate was diluted with ethyl acetate and washed with water. The organic layer was washed with brine, dried over magnesium sulfate and filtered. Silica gel was added and the mixture was concentrated. Finally, the crude material was purified by silica column chromatography eluting with a gradient of 0%- 45% ethyl acetate / heptane to give 2-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzonitrile (5.07 g, 82%) as a white solid.