[ CAS No. 1338494-62-4 ] {[proInfo.proName]}

Name: 1338494-62-4|3-(Trifluoromethyl)-1,2,4-oxadiazol-5-ol|97%
Brand: Ambeed
SKU: A135862
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Quality Control of [ 1338494-62-4 ]

COA NMR CNMR HPLC LC-MS

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SDS Specification

Alternatived Products of [ 1338494-62-4 ]

Product Details of [ 1338494-62-4 ]

CAS No. :	1338494-62-4	MDL No. :	MFCD20441336
Formula :	C₃HF₃N₂O₂	Boiling Point :	-
Linear Structure Formula :	-	InChI Key :	-
M.W :	154.05	Pubchem ID :	-
Synonyms :

Safety of [ 1338494-62-4 ]

Signal Word:	Warning	Class:	N/A
Precautionary Statements:	P261-P305+P351+P338	UN#:	N/A
Hazard Statements:	H315-H319-H335	Packing Group:	N/A
GHS Pictogram:

Application In Synthesis of [ 1338494-62-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

Downstream synthetic route of [ 1338494-62-4 ]

[ 1338494-62-4 ] Synthesis Path-Downstream 1~3

1
[ CAS Unavailable ]
[ 1338494-62-4 ]

Yield	Reaction Conditions	Operation in experiment
	With methanesulfonic acid In water	1 example 1 Compound 3 (130.62 g),Pyridine (505.82 g),Trifluoroacetic anhydride (209.78 g)Were reacted at 10 ° C. to obtain a gas of Compound 4.Separately, Compound 1 (40.00 g, 575.6 mmol) and methanol (79.22 g)Was cooled to -10 ° C., 28% sodium methylate / methanol solution (111.16 g) and methanol were added and stirred,Compound 2 was prepared in the system. To the obtained reaction solution, a gas of Compound 4 was introduced at -10 ° C., stirred,Compound 5 was prepared in the system. After raising the temperature to 25 ° C,Dimethyl carbonate (155.68 g),28% sodium methylate / methanol solution (166.62 g) was added,And reacted at 60 ° C. to prepare compound 6 in the system.To the resulting reaction solution were added water (400.05 g),And methanesulfonic acid (110.66 g), And compound 7 was prepared in the system.The mixture was extracted with 4-methyl-2-pentanone (481.25 g), and the aqueous layer and the organic layer were separated.The obtained organic layer was washed with water (400.21 g). The two obtained aqueous layers were successively treated with 4-methyl-2-pentanone (320.11 g). Combining the two organic layers,4-methyl-2-pentanone (32.05 g), imidazole (43.12 g)And methanol (63.32 g) were added.The obtained solution was mixed with 343.72 g. Toluene (970.81 g) was added at 25 ° C., and the obtained solid was collected by filtration to give a crude product(Compound 8).Methanol (949.82 g) was added to the crude product,And methanesulfonic acid (88.25 g) were added, the mixture was concentrated to a liquid amount of 395.80 g, and water (120.51 g) was added. It was extracted with 4-methyl-2-pentanone (481.82 g)The organic layer was washed with water (200.12 g).The two aqueous layers were back-extracted in sequence with 4-methyl-2-pentanone (320.51 g). The two organic layers were combined to give an organic layer containing Compound 7. 4-methyl-2-pentanone (32.11 g), imidazole (33.16 g), and methanol (63.36 g) were added to the obtained organic layer.The resulting solution was concentrated to a liquid volume of 340.75 g. Toluene (970.22 g) was added at 25 ° C. The obtained solid was collected by filtration,Compound 8 (105.03 g, yield 82%)As white crystals.

Reference： [1]Current Patent Assignee: SHIONOGI & CO., LTD. - JP2018/70607, 2018, A Location in patent: Paragraph 0038

2
[ 288-32-4 ]
[ 1338494-62-4 ]
[ 2226335-09-5 ]

Yield	Reaction Conditions	Operation in experiment
105.03 g	In methanol; toluene at 25℃;	1 example 1 Compound 3 (130.62 g),Pyridine (505.82 g),Trifluoroacetic anhydride (209.78 g)Were reacted at 10 ° C. to obtain a gas of Compound 4.Separately, Compound 1 (40.00 g, 575.6 mmol) and methanol (79.22 g)Was cooled to -10 ° C., 28% sodium methylate / methanol solution (111.16 g) and methanol were added and stirred,Compound 2 was prepared in the system. To the obtained reaction solution, a gas of Compound 4 was introduced at -10 ° C., stirred,Compound 5 was prepared in the system. After raising the temperature to 25 ° C,Dimethyl carbonate (155.68 g),28% sodium methylate / methanol solution (166.62 g) was added,And reacted at 60 ° C. to prepare compound 6 in the system.To the resulting reaction solution were added water (400.05 g),And methanesulfonic acid (110.66 g), And compound 7 was prepared in the system.The mixture was extracted with 4-methyl-2-pentanone (481.25 g), and the aqueous layer and the organic layer were separated.The obtained organic layer was washed with water (400.21 g). The two obtained aqueous layers were successively treated with 4-methyl-2-pentanone (320.11 g). Combining the two organic layers,4-methyl-2-pentanone (32.05 g), imidazole (43.12 g)And methanol (63.32 g) were added.The obtained solution was mixed with 343.72 g. Toluene (970.81 g) was added at 25 ° C., and the obtained solid was collected by filtration to give a crude product(Compound 8).Methanol (949.82 g) was added to the crude product,And methanesulfonic acid (88.25 g) were added, the mixture was concentrated to a liquid amount of 395.80 g, and water (120.51 g) was added. It was extracted with 4-methyl-2-pentanone (481.82 g)The organic layer was washed with water (200.12 g).The two aqueous layers were back-extracted in sequence with 4-methyl-2-pentanone (320.51 g). The two organic layers were combined to give an organic layer containing Compound 7. 4-methyl-2-pentanone (32.11 g), imidazole (33.16 g), and methanol (63.36 g) were added to the obtained organic layer.The resulting solution was concentrated to a liquid volume of 340.75 g. Toluene (970.22 g) was added at 25 ° C. The obtained solid was collected by filtration,Compound 8 (105.03 g, yield 82%)As white crystals.

Reference： [1]Current Patent Assignee: SHIONOGI & CO., LTD. - JP2018/70607, 2018, A Location in patent: Paragraph 0038

3
[ 288-32-4 ]
[ 1338494-62-4 ]
[ 2226335-11-9 ]

Yield	Reaction Conditions	Operation in experiment
3.13 g	With 4-methyl-morpholine; Isopropyl acetate; N-ethyl-N,N-diisopropylamine; trichlorophosphate at 25 - 40℃; for 5h;	2.2 Second Step Production Method of Compound 9 Compound 7 (3.09 g, 20.1 mmol), isopropyl acetate (14.7 mL), imidazole (1.67 g, 24.5 mmol), N, N- diisopropylethylamine (5.12 g, 39.6 mmol) and N- Methyl morpholine (0.06 g, 0.6 mmol) was mixed at 25 ° C. and phosphorous oxychloride (4.49 g, 29.3 mmol) was added. The reaction solution was heated to 40 ° C. and stirred for 5 hours. The reaction solution was cooled to 25 ° C. and added dropwise to a 25% aqueous dipotassium hydrogen phosphate solution (46.4 mL) at 0 ° C. over 20 minutes for extraction. The extract was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane / ethyl acetate) to obtain compound 9 (3.13 g, 15.3 mmol).

Reference： [1]Current Patent Assignee: SHIONOGI & CO., LTD. - JP2018/70607, 2018, A Location in patent: Paragraph 0040; 0041

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Ghs Precautionary Statements

Precautionary Statements-General
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P101	If medical advice is needed,have product container or label at hand.
P102	Keep out of reach of children.
P103	Read label before use
Prevention
Code	Phrase
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P210	Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
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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.
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P230	Keep wetted
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P232	Protect from moisture.
P233	Keep container tightly closed.
P234	Keep only in original container.
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P240	Ground/bond container and receiving equipment.
P241	Use explosion-proof electrical/ventilating/lighting/equipment.
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P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy/while nursing.
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P270	Do not eat, drink or smoke when using this product.
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P281	Use personal protective equipment as required.
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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.
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Code	Phrase
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P304	IF INHALED:
P305	IF IN EYES:
P306	IF ON CLOTHING:
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P308	IF exposed or concerned:
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P310	Immediately call a POISON CENTER or doctor/physician.
P311	Call a POISON CENTER or doctor/physician.
P312	Call a POISON CENTER or doctor/physician if you feel unwell.
P313	Get medical advice/attention.
P314	Get medical advice/attention if you feel unwell.
P315	Get immediate medical advice/attention.
P320
P302 + P352	IF ON SKIN: wash with plenty of soap and water.
P321
P322
P330	Rinse mouth.
P331	Do NOT induce vomiting.
P332	IF SKIN irritation occurs:
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P334	Immerse in cool water/wrap n wet bandages.
P335	Brush off loose particles from skin.
P336	Thaw frosted parts with lukewarm water. Do not rub affected area.
P337	If eye irritation persists:
P338	Remove contact lenses, if present and easy to do. Continue rinsing.
P340	Remove victim to fresh air and keep at rest in a position comfortable for breathing.
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:
P350	Gently wash with plenty of soap and water.
P351	Rinse cautiously with water for several minutes.
P352	Wash with plenty of soap and water.
P353	Rinse skin with water/shower.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P361	Remove/Take off immediately all contaminated clothing.
P362	Take off contaminated clothing and wash before reuse.
P363	Wash contaminated clothing before reuse.
P370	In case of fire:
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P372	Explosion risk in case of fire.
P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P376	Stop leak if safe to do so. Oxidising gases (section 2.4) 1
P377	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P378
P380	Evacuate area.
P381	Eliminate all ignition sources if safe to do so.
P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P301 + P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P301 + P330 + P331	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
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.
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P401
P402	Store in a dry place.
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P411
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P413
P420	Store away from other materials.
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.
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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
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H311	Toxic in contact with skin
H312	Harmful in contact with skin
H313	May be harmful in contact with skin
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
H350	May cause cancer
H351	Suspected of causing cancer
H360	May damage fertility or the unborn child
H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
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Code	Phrase
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long-lasting effects
H411	Toxic to aquatic life with long-lasting effects
H412	Harmful to aquatic life with long-lasting effects
H413	May cause long-lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere

[ CAS No. 1338494-62-4 ] {[proInfo.proName]}

Quality Control of [ 1338494-62-4 ]

Related Doc. of [ 1338494-62-4 ]

Product Details of [ 1338494-62-4 ]

Safety of [ 1338494-62-4 ]

Application In Synthesis of [ 1338494-62-4 ]

[ 1338494-62-4 ] Synthesis Path-Downstream 1~3

Related Functional Groups of [ 1338494-62-4 ]

Alcohols

Related Parent Nucleus of [ 1338494-62-4 ]

Oxadiazoles

Precautionary Statements-General

Prevention

Response

Storage

Disposal

Physical hazards

Health hazards

Environmental hazards

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Related Functional Groups of
[ 1338494-62-4 ]

Related Parent Nucleus of
[ 1338494-62-4 ]