[ CAS No. 791-28-6 ] {[proInfo.proName]}

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2D 3D

Structure of 791-28-6 * Storage: {[proInfo.prStorage]}

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Quality Control of [ 791-28-6 ]

COA NMR CNMR HPLC LC-MS

Related Doc. of [ 791-28-6 ]

SDS Specification

Alternatived Products of [ 791-28-6 ]

Product Details of [ 791-28-6 ]

CAS No. :	791-28-6	MDL No. :	MFCD00002080
Formula :	C₁₈H₁₅OP	Boiling Point :	-
Linear Structure Formula :	(C₆H₅)₃P(O)	InChI Key :	FIQMHBFVRAXMOP-UHFFFAOYSA-N
M.W :	278.28	Pubchem ID :	13097
Synonyms :

Calculated chemistry of [ 791-28-6 ] Expand+

Physicochemical Properties

Num. heavy atoms :	20
Num. arom. heavy atoms :	18
Fraction Csp3 :	0.0
Num. rotatable bonds :	3
Num. H-bond acceptors :	1.0
Num. H-bond donors :	0.0
Molar Refractivity :	85.83
TPSA :	26.88 Å²

Pharmacokinetics

GI absorption :	High
BBB permeant :	Yes
P-gp substrate :	No
CYP1A2 inhibitor :	Yes
CYP2C19 inhibitor :	Yes
CYP2C9 inhibitor :	Yes
CYP2D6 inhibitor :	Yes
CYP3A4 inhibitor :	No
Log Kp (skin permeation) :	-5.99 cm/s

Lipophilicity

Log Po/w (iLOGP) :	2.76
Log Po/w (XLOGP3) :	2.83
Log Po/w (WLOGP) :	3.33
Log Po/w (MLOGP) :	4.02
Log Po/w (SILICOS-IT) :	4.13
Consensus Log Po/w :	3.41

Druglikeness

Lipinski :	0.0
Ghose :	None
Veber :	0.0
Egan :	0.0
Muegge :	0.0
Bioavailability Score :	0.55

Water Solubility

Log S (ESOL) :	-3.82
Solubility :	0.0425 mg/ml ; 0.000153 mol/l
Class :	Soluble
Log S (Ali) :	-3.05
Solubility :	0.247 mg/ml ; 0.000886 mol/l
Class :	Soluble
Log S (SILICOS-IT) :	-7.45
Solubility :	0.00000997 mg/ml ; 0.0000000358 mol/l
Class :	Poorly soluble

Medicinal Chemistry

PAINS :	0.0 alert
Brenk :	1.0 alert
Leadlikeness :	0.0
Synthetic accessibility :	4.1

Safety of [ 791-28-6 ]

Signal Word:	Warning	Class:	N/A
Precautionary Statements:	P264-P270-P273-P301+P312-P501	UN#:	N/A
Hazard Statements:	H302-H412	Packing Group:	N/A
GHS Pictogram:

Application In Synthesis of [ 791-28-6 ]

* 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 [ 791-28-6 ]

[ 791-28-6 ] Synthesis Path-Downstream 1~7

1
p-(1-methylbenzimidazol-2-yl)phenyl(triphenyl)phosphonium bromide [ No CAS ]
[ 2622-63-1 ]
[ 2562-78-9 ]
[ 791-28-6 ]

Reference： [1]Phosphorus, Sulfur and Silicon and the Related Elements,1994,vol. 86,p. 259 - 262
[2]Journal of the Chemical Society. Perkin transactions I,1995,p. 2789 - 2794
[3]Journal of the Chemical Society. Perkin transactions I,1995,p. 2789 - 2794

2
o-(1-methylbenzimidazol-2-yl)phenyl(triphenyl)phosphonium bromide [ No CAS ]
[ 2622-63-1 ]
[ 791-28-6 ]

Reference： [1]Journal of the Chemical Society. Perkin transactions I,1995,p. 2789 - 2794
[2]Journal of the Chemical Society. Perkin transactions I,1995,p. 2789 - 2794

3
[ 635712-99-1 ]
[ 16847-90-8 ]
ethyl (2Z)-3-[6-(benzyloxy)pyridin-3-yl]-2-ethoxyacrylate [ No CAS ]
[ 791-28-6 ]

Yield	Reaction Conditions	Operation in experiment
	With N,N,N1,N1-tetramethylguanidine; ammonium chloride; In chloroform;	Preparation d-5 Ethyl (2Z)-3-[6-(benzyloxy)pyridin-3-yl]-2-ethoxyacrylate To a solution of <strong>[635712-99-1]6-(benzyloxy)nicotinaldehyde</strong> (1.0 eq., 33.1 mmol, 7.05 g) and (1,2-diethoxy-2-oxoethyl)(triphenyl)phosphonium chloride (2.0 eq., 66.2 mmol, 28.4 g) in chloroform (165 mL, 0.2 M) was added tetramethylguanidine (3.0 eq., 99.3 mmol, 11.4 g). The flask was capped with a hollow glass stopper and stirred at room temperature overnight. TLC analysis after approximately 18 hours indicated the presence of a small amount of unreacted starting material. The reaction mixture was heated to reflux and TLC reanalyzed after 2 hours. The reaction was quenched with saturated ammonium chloride. The layers were separated and the organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacua. A large amount of triphenylphosphine oxide precipitated. The residue was triturated with ether and filtered. Washed filter cake with ether and concentrated combined filtrates in vacuo to afford a pale yellow solid which was dissolved in a minimal amount of DCM and loaded onto Biotage Sp4 65i and eluted over a gradient of 10-100% hexanes to ethyl acetate. Obtained 12.3 g of a clear, colorless oil (37.6 mmol, quant.). LRMS: 328 (M+H)+. 1H NMR (DMSO-d6, 400 MHz): delta 8.33 (1 H, s) 7.92 (1 H, d, J=8.0 Hz) 7.31-7.43 (5 H, m) 6.76 (1 H, d, J=8.1 Hz) 6.60 (1 H, s) 5.37 (2 H, s) 4.23 (2 H, q, J=7.1 Hz) 3.90-3.99 (2 H, m) 1,34 (6 H, dt, J=15.8, 7.0 Hz).

Reference： [1]Patent: US2005/187266,2005,A1

4
[ 15121-84-3 ]
[ 16793-89-8 ]
[ 791-28-6 ]

Yield	Reaction Conditions	Operation in experiment
	With carbon tetrabromide; triphenylphosphine; In dichloromethane; at 0℃;	Triphenylphosphine (39.2 g, 0.150 mol) and carbon TETRABROMIDE (49.5 g, 0.150 mol) were added sequentially to a solution of 2- (2-hydroxyethyl)-nitrobenzene (25.0 g, 0.150 mol) in methylene chloride (400 mL) at OOC. The reaction was stirred overnight and quenched with saturated sodium bicarbonate solution. The methylene chloride phase was washed with saturated brine and dried over magnesium sulfate. The crude product was treated with ethyl acetate, and the precipitated triphenylphosphine oxide removed by filtration. Further purification by flash chromatography by (silica gel, 0-10percent ethyl acetate in hexane gradient elution) produced the title compound (27.9 g).

Reference： [1]Patent: WO2005/807,2005,A2 .Location in patent: Page 38

5
[ 14154-42-8 ]
[ 791-28-6 ]
AlCl((C₆H₅)3PO)(C₆H₄C₂N₂)4 [ No CAS ]

Reference： [1]Zeitschrift fur Anorganische und Allgemeine Chemie,2000,vol. 626,p. 671 - 678

6
[ 50607-30-2 ]
4-chloro-5,6-dihydropyridin-2(1H)-one [ No CAS ]
[ 791-28-6 ]

Reference： [1]Angewandte Chemie - International Edition,2014,vol. 53,p. 3594 - 3598
Angew. Chem.,2014,vol. 126,p. 3668 - 3672,5

7
[ 51716-63-3 ]
[ 2325-27-1 ]
N,N'-(tetrahydropentalene-2,5(1H,3H)-diylidene)dianiline [ No CAS ]
5-(phenylamino)-3,3a,6,6a-tetrahydropentalen-2(1H)-one [ No CAS ]
[ 791-28-6 ]

Reference： [1]Egyptian Journal of Chemistry,2017,vol. 60,p. 277 - 289

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Technical Information

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Code	Phrase
P101	If medical advice is needed,have product container or label at hand.
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Prevention
Code	Phrase
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P220	Keep/Store away from clothing/combustible materials.
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P222	Do not allow contact with air.
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P231	Handle under inert gas.
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P233	Keep container tightly closed.
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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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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:
P371	In case of major fire and large quantities:
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.
Storage
Code	Phrase
P401
P402	Store in a dry place.
P403	Store in a well-ventilated place.
P404	Store in a closed container.
P405	Store locked up.
P406	Store in corrosive resistant/ container with a resistant inner liner.
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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.
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
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P501	Dispose of contents/container to ...
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Physical hazards
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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
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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
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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
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H314	Causes severe skin burns and eye damage
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H316	Causes mild skin irritation
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H319	Causes serious eye irritation
H320	Causes eye irritation
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H331	Toxic if inhaled
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H372	Causes damage to organs through prolonged or repeated exposure
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Environmental hazards
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. 791-28-6 ] {[proInfo.proName]}

Quality Control of [ 791-28-6 ]

Related Doc. of [ 791-28-6 ]

Product Details of [ 791-28-6 ]

Calculated chemistry of [ 791-28-6 ] Expand+

Physicochemical Properties

Pharmacokinetics

Lipophilicity

Druglikeness

Water Solubility

Medicinal Chemistry

Safety of [ 791-28-6 ]

Application In Synthesis of [ 791-28-6 ]

[ 791-28-6 ] Synthesis Path-Downstream 1~7

Technical Information

Precautionary Statements-General

Prevention

Response

Storage

Disposal

Physical hazards

Health hazards

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