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Cas Database |
| Name |
Diphenylsilanediol |
EINECS | 213-427-4 |
| CAS No. | 947-42-2 | Density | 1.19 g/cm3 |
| PSA | 40.46000 | LogP | 0.22760 |
| Solubility | reacts with water | Melting Point |
144-147 °C |
| Formula | C12H12O2Si | Boiling Point | 352.6 °C at 760 mmHg |
| Molecular Weight | 216.312 | Flash Point | 167.1 °C |
| Transport Information | UN 1325 4.1/PG 3 | Appearance | White powder |
| Safety | 16-22-24/25 | Risk Codes | 11 |
| Molecular Structure |
|
Hazard Symbols |
 F
|
| Synonyms |
Silanediol,diphenyl- (8CI,9CI);D 6150;Dihydroxydiphenylsilane;LS 4320;NSC 12561;SX 11;SX 11 (diol);TSL 8162; |
Article Data | 86 |
Diphenylsilanediol Synthetic route
| Conditions | Yield |
|---|---|
| With water In tetrahydrofuran at 20℃; for 0.5h; | 99% |
| With oxygen In water; acetone at 30℃; under 760.051 Torr; for 0.333333h; | 99% |
| With water; oxygen; hydroxyapatite-bound Ru In ethyl acetate at 80℃; for 9h; | 98% |
| Conditions | Yield |
|---|---|
| With water; oxygen In tetrahydrofuran at 20℃; for 12h; Irradiation; | 98% |
| With oxygen In tetrahydrofuran; water at 20℃; under 760.051 Torr; for 2h; Green chemistry; | 96% |
| With 2,2,2-Trifluoroacetophenone; dihydrogen peroxide In ethyl acetate; acetonitrile for 0.25h; Green chemistry; | 78% |
| With dihydrogen peroxide; copper(II) oxide In acetonitrile at 45℃; for 3h; Irradiation; | 98 %Chromat. |
- 50870-65-0
bis(benzyloxy)diphenylsilane
- 947-42-2
diphenylsilanediol
| Conditions | Yield |
|---|---|
| With palladium 10% on activated carbon; hydrogen In ethyl acetate at 20℃; for 12h; | 98% |
| With palladium-platinum; hydrogen In tetrahydrofuran at 20℃; for 1.5h; Concentration; | 89% |
| Conditions | Yield |
|---|---|
| With water In acetone at 25℃; for 3h; Catalytic behavior; | A 97% B n/a |
| With water; silver nitrate at 24.84℃; for 0.416667h; | A 85% B 88% |
| Conditions | Yield |
|---|---|
| With water In tert-Amyl alcohol; toluene at 10 - 12℃; for 0.166667h; | 93% |
| With H2O In water; toluene addn. of a soln. of (C6H5)2SiCl2 in toluene to a heterogeneous mixt. of toluene, t-amylalc. and H2O;; sucking off; crystn. from warm 2-butanone/CHCl3;; | 93% |
| With H2O In water; toluene addn. of a soln. of (C6H5)2SiCl2 in toluene to a heterogeneous mixt. of toluene, t-amylalc. and H2O;; sucking off; crystn. from warm 2-butanone/CHCl3;; | 93% |
| Conditions | Yield |
|---|---|
| With potassium hydroxide In potassium hydroxide (C6H5)2Si(OC2H5)2 and 5% aq. KOH at room temp. for 6 h; neutralization by acetic acid;; | 88.1% |
| With KOH In potassium hydroxide aq. KOH; (C6H5)2Si(OC2H5)2 and 5% aq. KOH at room temp. for 6 h; neutralization by acetic acid;; | 88.1% |
- 18676-80-7
bis(2-thienyl)diphenylsilane
- 947-42-2
diphenylsilanediol
| Conditions | Yield |
|---|---|
| With trifluoroacetic acid In dichloromethane at 0℃; for 2h; | 86% |
- 70096-32-1
pentaphenyldisilanecarboxylic acid
A
- 947-42-2
diphenylsilanediol
B
- 791-31-1
triphenylhydroxysilane
| Conditions | Yield |
|---|---|
| With potassium hydroxide In ethanol; water for 48h; Ambient temperature; | A 30% B 55% |
| Conditions | Yield |
|---|---|
| With diethyl ether |
| Conditions | Yield |
|---|---|
| With potassium hydroxide; acetic acid | |
| In not given addn. of acid to a cold soln. of tetraphenyl-1,3-dioxydisiloxane in aq. KOH;; | |
| Multi-step reaction with 2 steps 1: neat (no solvent) 2: KOH / ethanol View Scheme |
Diphenylsilanediol Chemical Properties
Molecular Formula: C12H12O2Si
Molar mass: 216.308 g/mol
EINECS: 213-427-4
Density: 1.19 g/cm3
Flash Point: 167.1 °C
Index of Refraction: 1.615
Melting point: 144-147 °C
Storage temp: Flammables area
Water solubility: reacts
Sensitive: Air & Light Sensitive
Appearance: White powder
Boiling Point: 352.6 °C at 760 mmHg
Vapour Pressure: 1.4E-05 mmHg at 25°C
Product categories: Silanols;Organosilicon;Self-Assembly Materials;Phenyl Silanes;Self Assembly & Contact Printing;Silanes Organometallic Reagents
Structure of Diphenylsilanediol (947-42-2):
H-Bond Donor: 2
H-Bond Acceptor: 2
IUPAC Name: Dihydroxy(diphenyl)silane
Canonical SMILES: C1=CC=C(C=C1)[Si](C2=CC=CC=C2)(O)O
InChI: InChI=1S/C12H12O2Si/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,
13-14H
InChIKey: OLLFKUHHDPMQFR-UHFFFAOYSA-N
Diphenylsilanediol Production
Diphenylsilanediol (947-42-2) can be prepared by hydrolysis of Diphenyldichlorosilane Ph2SiCl2.And, in a similar way to Phenytoin , it can act as an anticonvulsant.
Diphenylsilanediol Toxicity Data With Reference
| 1. | orl-mus LD50:2150 mg/kg | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1237. | ||
| 2. | ivn-mus LD50:180 mg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#04052 . |
Diphenylsilanediol Consensus Reports
Reported in EPA TSCA Inventory.
Diphenylsilanediol Safety Profile
Poison by intravenous route. Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes: F.gif){kind=small}
Risk Statements:
11: Highly Flammable
Safety Statements:
16: Keep away from sources of ignition - No smoking
22: Do not breathe dust
24: Avoid contact with skin
25: Avoid contact with eyes
Diphenylsilanediol Specification
Diphenylsilanediol (947-42-2) is a silanol, and, also can be called Dihydroxydiphenylsilane ; Silanediol, 1,1-diphenyl- ; Silane, dihydroxydiphenyl- . Diphenylsilanediol (947-42-2) is hazardous,so the first aid measures and others should be known.Such as: When on the skin: first,should flush skin with plenty of water immediatelyfor at least 15 minutes while removing contaminated clothing. Secondly,Get shoesmedical aid . Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.Then get medical aid soon.While ,it's Inhaled: Remove from exposure and move to fresh air immediately.Give artificial respiration while not breathing. When breathing is difficult, give oxygen.And as soon as to get medical aid.Then you have the ingesting of the product : Wash mouth out with water,and get medical aid immediately.
In addition, Diphenylsilanediol (947-42-2) can be stable under normal temperature and pressure conditions.It is not compatible with strong oxidizing agents, and you must not take it with ignition sources, high temperatures and incompatible materials, and not be exposured to moist air or water.And also prevent it to broken down into hazardous decomposition products: silicon dioxide,carbon dioxide,carbon monoxide.
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