90531-98-9|1-Bromo-2-methoxy-4-(methylsulfonyl)benzene| Ambeed

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CAS No. :	90531-98-9
Formula :	C₈H₉BrO₃S
M.W :	265.12
SMILES Code :	O=S(C1=CC=C(Br)C(OC)=C1)(C)=O

GHS Pictogram:
Signal Word:	Warning
Hazard Statements:	H302-H315-H319-H335
Precautionary Statements:	P261-P305+P351+P338

Yield	Reaction Conditions	Operation in experiment
41%	With tert.-butylnitrite; copper(ll) bromide; In acetonitrile; at 80.0℃; for 1.0h;	Compound 34-e (1.0 g, 4.98 mmol) was dissolved in acetonitrile (10 mL), copper(II) bromide (1.9 g, 7.50 mmol)was added and tert-butyl nitrite (0.73 mL) was added slowly thereto. The reaction mixture was stirred at 80°C for 1 hour.The reaction mixture was cooled to room temperature, diluted with water (50 mL) and extracted with ethyl acetate (100mL). The organic phase was washed successively with water (50 mL 3 3) and brine (50 mL), dried over anhydroussodium sulfate, filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gelcolumn chromatography (petroleum ether: ethyl acetate = 1:1) to delivera pale yellow solid 34-d (540 mg, yield: 41percent).LC-MS (ESI): m/z = 202 [M+H]+.
540 mg	With tert.-butylnitrite; copper(I) bromide; In acetonitrile; at 80.0℃; for 1.0h;	Compound 4-c (1 g, 4.98 mmol) was dissolved in acetonitrile (10 mL) and copper bromide (1.9 g, 7.50 mmol) was added, followed by slowly adding tert-butyl nitrite (0.73 mL). The mixture was heated to 80° C. and reacted for 1 hour, cooled to room temperature and then concentrated under reduced pressure. The residue was diluted with ethyl acetate (100 mL) and water (50 mL) and filtered through celite. The combined organic phase was dried over anhydrous sodium sulfate, filtered and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (petroleum ether: ethyl acetate=1:1) to give 4-b as a pale yellow solid (540 mg, yield 41percent). LC-MS (ESI): m/z=265[M+H]+.

Precautionary Statements-General
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Code	Phrase
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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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P242	Use only non-sparking tools.
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P263	Avoid contact during pregnancy/while nursing.
P264	Wash hands thoroughly after handling.
P265	Wash skin thouroughly after handling.
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Response
Code	Phrase
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P320
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P321
P322
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P342	If experiencing respiratory symptoms:
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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.
P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
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
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P401
P402	Store in a dry place.
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P422
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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.: 90531-98-9

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CAS No.: 90531-98-9

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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