1446321-93-2|(2-(1-Isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methanol| Ambeed

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CAS No. :	1446321-93-2
Formula :	C₁₂H₁₅N₃O
M.W :	217.27
SMILES Code :	OCC1=CC=CN=C1C2=CC=NN2C(C)C

GHS Pictogram:
Signal Word:	Warning
Hazard Statements:	H302-H315-H319-H335
Precautionary Statements:	P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Yield	Reaction Conditions	Operation in experiment
37%	With di-isopropyl azodicarboxylate; triphenylphosphine; In tetrahydrofuran; at 20℃;Inert atmosphere;	Example 8: Synthesis of Compound (I) by Mitsunobu couplingInto a 2000-mL three neck round-bottom flask, which was purged and maintained with an inert atmosphere of nitrogen, was placed a solution of [2-[1-(propan-2-yl)-1H-pyrazol-5-yl]pyridin-3-yl]methanol (7) (70 g, 322.18 mmol, 1.00 equiv) in tetrahydrofuran (1000 mL). 2,6-dihydroxybenzaldehyde (9) (49.2 g, 356.21 mmol, 1.10 equiv) and PPh3 (101 g, 385.07 mmol, 1.20 equiv) were added to the reaction mixture. This was followed by the addition of a solution of DIAD (78.1 g, 386.23 mmol, 1.20 equiv) in tetrahydrofuran (200 ml) dropwise with stirring. The resulting solution was stirred overnight at room temperature. The resulting solution was diluted with 500 ml of H2O. The resulting solution was extracted with 3x500 ml of dichloromethane and the combined organic layers were dried over sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with EA:PE (1 :50-l :3) as eluent to yield the crude product. The crude product was re- crystallized from i-propanol/H2O in the ratio of 1/1.5. This resulted in 40 g (37%) of 2-hydroxy-6-([2-[1-(propan-2-yl)-1H-pyrazol-5-yl]pyridin-3-yl]methoxy)benzaldehyde as a light yellow solid. The compound exhibited a melting point of 80-82 C. MS (ES, m/z): 338.1 [M+1]. 1H NMR (300 MHz, DMSO-d6) delta 11.72(s, 1H), 10.21(s, 1H), 8.76(d, J=3.6Hz, 1H), 8.24(d, J=2.7Hz, lH),7.55(m, 3H), 6.55(m,3H) ,5.21 (s, 2H), 4.65 (m, 1H), 1.37 (d, J=5.1Hz, 6H). 1H NMR (400 MHz, CDCl3) delta 11.96 (s, 1H), 10.40 (s, 1H), 8.77 (dd, J= 4.8, 1.5 Hz, 1H), 8.00 (d, J= 7.8 Hz, 1H), 7.63 (d, J= 1.8 Hz, 1H), 7.49 - 7.34 (m, 2H), 6.59 (d, J= 8.5 Hz, 1H), 6.37 (d, J= 1.8 Hz, 1H), 6.29 (d, J= 8.2 Hz, 1H), 5.10 (s, 2H), 4.67 (sep, J= 6.7 Hz, 1H), 1.50 (d, J= 6.6 Hz, 6H).
37%	With di-isopropyl azodicarboxylate; triphenylphosphine; In tetrahydrofuran; at 22℃;Inert atmosphere;	Example 8 Synthesis of Compound (I) by Mitsunobu Coupling Into a 2000-mL three neck round-bottom flask, which was purged and maintained with an inert atmosphere of nitrogen, was placed a solution of [2-[1-(propan-2-yl)-1H-pyrazol-5-yl]pyridin-3-yl]methanol (7) (70 g, 322.18 mmol, 1.00 equiv) in tetrahydrofuran (1000 mL). 2,6-Dihydroxybenzaldehyde (9) (49.2 g, 356.21 mmol, 1.10 equiv) and PPh3 (101 g, 385.07 mmol, 1.20 equiv) were added to the reaction mixture. This was followed by the addition of a solution of DIAD (78.1 g, 386.23 mmol, 1.20 equiv) in tetrahydrofuran (200 ml) dropwise with stirring. The resulting solution was stirred overnight at room temperature. The resulting solution was diluted with 500 ml of H2O. The resulting solution was extracted with 3*500 ml of dichloromethane and the combined organic layers were dried over sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with EA:PE (1:50-1:3) as eluent to yield the crude product. The crude product was re-crystallized from i-propanol/H2O in the ratio of 1/1.5. This resulted in 40 g (37%) of 2-hydroxy-6-([2-[1-(propan-2-yl)-1H-pyrazol-5-yl]pyridin-3-yl]methoxy)benzaldehyde as a light yellow solid. The compound exhibited a melting point of 80-82 C. MS (ES, m/z): 338.1 [M+1]. 1H NMR (300 MHz, DMSO-d6) delta 11.72 (s, 1H), 10.21 (s, 1H), 8.76 (d, J=3.6 Hz, 1H), 8.24 (d, J=2.7 Hz, 1H), 7.55 (m, 3H), 6.55 (m, 3H), 5.21 (s, 2H), 4.65 (m, 1H), 1.37 (d, J=5.1 Hz, 6H). 1H NMR (400 MHz, CDCl3) delta 11.96 (s, 1H), 10.40 (s, 1H), 8.77 (dd, J=4.8, 1.5 Hz, 1H), 8.00 (d, J=7.8 Hz, 1H), 7.63 (d, J=1.8 Hz, 1H), 7.49-7.34 (m, 2H), 6.59 (d, J=8.5 Hz, 1H), 6.37 (d, J=1.8 Hz, 1H), 6.29 (d, J=8.2 Hz, 1H), 5.10 (s, 2H), 4.67 (sep, J=6.7 Hz, 1H), 1.50 (d, J=6.6 Hz, 6H).

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Code	Phrase
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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
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Code	Phrase
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P378
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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:
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P401
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P411 + P235	Keep cool.
Disposal
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P501	Dispose of contents/container to ...
P502	Refer to manufacturer/supplier for information on recovery/recycling

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CAS No.: 1446321-93-2

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CAS No.: 1446321-93-2

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[ 1446321-93-2 ] Synthesis Path-Downstream 1~2

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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