51239-46-4|(4-(Aminomethyl)phenyl)boronic acid| Ambeed

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CAS No. :	51239-46-4
Formula :	C₇H₁₀BNO₂
M.W :	150.97
SMILES Code :	NCC1=CC=C(B(O)O)C=C1
MDL No. :	MFCD06213214

GHS Pictogram:
Signal Word:	Warning
Hazard Statements:	H302-H315-H319-H332-H335
Precautionary Statements:	P280-P305+P351+P338-P310

Yield	Reaction Conditions	Operation in experiment
	With triethylamine; In tetrahydrofuran; for 1h;Heating / reflux;	3,5-Dimethyl-isoxazole-4-sulfonic acid 4-(5-fluoro-2-methoxy-pyridin-3-yl) benzylamide Di-tert-butyl dicarbonate (3.5 g, 16 mmol) and triethylamine (13 ml, 9.4 mmol) were added to a stirred solution of 4-aminomethylphenylboronic acid (3 g, 16 mmol) in tetrahydrofuran (100 ml). The reaction was stirred under reflux for 1 hour, then the solvent evaporated and the residue partitioned between water and ethyl acetate. The organic phase was concentrated under reduced pressure to give tert-butoxycarbonylaminomethyl-4-phenyl-boronic acid (2.67 g, 10.6 mmol) as a white solid. Toluene (16 ml), ethanol (4 ml), 2M sodium carbonate solution and tetrakis(triphenylphosphine) palladium (0) were added to tert-butoxycarbonylaminomethyl-4-phenyl-boronic acid (1.349 g, 5.4 mmol) and 3-bromo-5-fluoro-2-methoxy-pyridine (0.505 g, 2.45 mmol) and the mixture stirred under reflux for 24 h. Water was added and the mixture extracted with ethyl acetate. The organic phase was separated and the solvent evaporated. The residue was purified on silica gel eluting with 3:1 heptane/ethyl acetate to give [4-(5-fluoro-2-methoxy-pyridin-3-yl-benzyl]-carbamic acid-tert-butyl ester as a yellow oil. Trifluoroacetic acid (2 ml, 0.026 mmol) was added to a solution of [4-(5-fluoro-2-methoxy-pyridin-3-yl-benzyl]-carbamic acid-tert-butyl ester (0.8 g, 2.41 mmol) in dichloromethane (4 ml) and the reaction mixture stirred for 2 h. The solvent was evaporated and the residue partitioned between water and ethyl acetate. The organic phase was separated and the solvent evaporated to give 4-(5-fluoro-2-methoxy-pyridin-3-yl)-benzylamine. The title compound was prepared in a similar manner to N-[1-(2-allyl-5'-fluoro-2'-methoxy-biphenyl-4-yl)-ethyl]-3,4-difluoro-benzenesulfonamide (Example 34) using 4-(5-fluoro-2-methoxy-pyridin-3-yl)-benzylamine and 3,5-dimethyl-isoxazole-4-sulfonyl chloride. MS (ESI) m/z: 392 [M+H]+.
	With triethylamine; In tetrahydrofuran; at 20℃; for 1h;	To a solution of 4-aminomethylphenylboronic acid (2.65 mmol) in THF (10 mL) were added di-tert-butyl dicarbonate (3.97 mmol) and triethylamine (1 mL). The mixture was stirred at room temperature for 1 h. After completion of the reaction, excess solvent was evaporated to dryness under reduced pressure. The residue was diluted with water (30 mL) and ethyl acetate (15 mL). The organic phase was separated, dried over MgSO4, filtered, and concentrated under reduced pressure. The NHBoc-protected boronic acid was then used for Suzuki coupling as described in compound 6 to afford compound 9.

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Code	Phrase
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P103	Read label before use
Prevention
Code	Phrase
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P220	Keep/Store away from clothing/combustible materials.
P221	Take any precaution to avoid mixing with combustibles
P222	Do not allow contact with air.
P223	Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P230	Keep wetted
P231	Handle under inert gas.
P232	Protect from moisture.
P233	Keep container tightly closed.
P234	Keep only in original container.
P235	Keep cool
P240	Ground/bond container and receiving equipment.
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P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy/while nursing.
P264	Wash hands thoroughly after handling.
P265	Wash skin thouroughly after handling.
P270	Do not eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P272	Contaminated work clothing should not be allowed out of the workplace.
P273	Avoid release to the environment.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P281	Use personal protective equipment as required.
P282	Wear cold insulating gloves/face shield/eye protection.
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P284	Wear respiratory protection.
P285	In case of inadequate ventilation wear respiratory protection.
P231 + P232	Handle under inert gas. Protect from moisture.
P235 + P410	Keep cool. Protect from sunlight.
Response
Code	Phrase
P301	IF SWALLOWED:
P304	IF INHALED:
P305	IF IN EYES:
P306	IF ON CLOTHING:
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P320
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P321
P322
P330	Rinse mouth.
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P337	If eye irritation persists:
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P341	If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342	If experiencing respiratory symptoms:
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P353	Rinse skin with water/shower.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
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P370	In case of fire:
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P372	Explosion risk in case of fire.
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P378
P380	Evacuate area.
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P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
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P301 + P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
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P302 + P334	IF ON SKIN: Immerse in cool water/wrap in wet bandages.
P302 + P350	IF ON SKIN: Gently wash with plenty of soap and water.
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P304 + P312	IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P304 + P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304 + P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P306 + P360	IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.
P307 + P311	IF exposed: call a POISON CENTER or doctor/physician.
P308 + P313	IF exposed or concerned: Get medical advice/attention.
P309 + P311	IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician.
P332 + P313	IF SKIN irritation occurs: Get medical advice/attention.
P333 + P313	IF SKIN irritation or rash occurs: Get medical advice/attention.
P335 + P334	Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P337 + P313	IF eye irritation persists: Get medical advice/attention.
P342 + P311	IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P370 + P376	In case of fire: Stop leak if safe to Do so.
P370 + P378	In case of fire:
P370 + P380	In case of fire: Evacuate area.
P370 + P380 + P375	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
P371 + P380 + P375	In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
Storage
Code	Phrase
P401
P402	Store in a dry place.
P403	Store in a well-ventilated place.
P404	Store in a closed container.
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P411
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P413
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P422
P402 + P404	Store in a dry place. Store in a closed container.
P403 + P233	Store in a well-ventilated place. Keep container tightly closed.
P403 + P235	Store in a well-ventilated place. Keep cool.
P410 + P403	Protect from sunlight. Store in a well-ventilated place.
P410 + P412	Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF.
P411 + P235	Keep cool.
Disposal
Code	Phrase
P501	Dispose of contents/container to ...
P502	Refer to manufacturer/supplier for information on recovery/recycling

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CAS No.: 51239-46-4

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CAS No.: 51239-46-4

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Physical hazards
Code	Phrase
H200	Unstable explosive
H201	Explosive; mass explosion hazard
H202	Explosive; severe projection hazard
H203	Explosive; fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable aerosol
H223	Flammable aerosol
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating; may catch fire
H252	Self-heating in large quantities; may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire; oxidizer
H271	May cause fire or explosion; strong oxidizer
H272	May intensify fire; oxidizer
H280	Contains gas under pressure; may explode if heated
H281	Contains refrigerated gas; may cause cryogenic burns or injury
H290	May be corrosive to metals
Health hazards
Code	Phrase
H300	Fatal if swallowed
H301	Toxic if swallowed
H302	Harmful if swallowed
H303	May be harmful if swallowed