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CAS No.: | 15933-59-2 |
---|---|
Name: | 1,1,3,3-Tetramethyldisilazane |
Article Data: | 11 |
Molecular Structure: | |
Formula: | C4H15NSi2 |
Molecular Weight: | 133.341 |
Synonyms: | Disilazane,1,1,3,3-tetramethyl- (6CI,7CI,8CI);1,1,3,3-Tetramethyldisilazane;1,3-Dihydrido-1,1,3,3-tetramethyldisilazane;Bis(dimethylsilyl)amine;LS 7050;NSC 139849;TMDS;Tetramethyldisilazane; |
EINECS: | 240-072-2 |
Density: | 0.752 g/mL at 25 °C(lit.) |
Melting Point: | 99-100 °C |
Boiling Point: | 91.1 °C at 760 mmHg |
Flash Point: | 17 °F |
Appearance: | Clear colorless to faintly yellow liquid |
Hazard Symbols: | F; Xi |
Risk Codes: | 11-36/37/38 |
Safety: | 16-26-36 |
PSA: | 12.03000 |
LogP: | 0.93370 |
dimethylmonochlorosilane
1,1,3,3-tetramethyldisilazane
Conditions | Yield |
---|---|
With ammonia In hexane at -30 - 20℃; for 6h; Inert atmosphere; Schlenk technique; | 90% |
With ammonia In hexane at -30 - 20℃; for 6h; Inert atmosphere; Schlenk technique; | 90% |
With ammonia | |
With ammonia | |
With ammonia In pentane at -25 - 20℃; for 6h; Schlenk technique; Inert atmosphere; | 197 g |
N,N',N''-trimethyl-1,4,7,10-tetraazacyclododecane
B
1,1,3,3-tetramethyldisilazane
Conditions | Yield |
---|---|
In pentane at 25℃; for 0.5h; Inert atmosphere; Schlenk technique; Glovebox; | A 86% B n/a |
dimethylmonochlorosilane
1,1,1,3,3,3-hexamethyl-disilazane
A
chloro-trimethyl-silane
B
1,1,3,3-tetramethyldisilazane
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride Heating; | A n/a B 70% |
Conditions | Yield |
---|---|
In dichloromethane-d2 Inert atmosphere; |
3,5-dimethyl-1H-pyrazole
tris(tetramethyldisilazanido)bis(tetrahydrofuran)cerium
B
1,1,3,3-tetramethyldisilazane
Conditions | Yield |
---|---|
In tetrahydrofuran-d8; benzene-d6 Inert atmosphere; |
3,5-dimethyl-1H-pyrazole
B
1,1,3,3-tetramethyldisilazane
Conditions | Yield |
---|---|
In benzene-d6 at 20℃; Inert atmosphere; |
Conditions | Yield |
---|---|
100% | |
With dimethylmonochlorosilane; triethylamine for 1h; temp.: below 40 deg C; | 57% |
With dimethylmonochlorosilane Heating; | |
at 20 - 160℃; for 2h; Inert atmosphere; |
4-chloro-phenol
1,1,3,3-tetramethyldisilazane
(4-Chloro-phenoxy)-dimethyl-silane
Conditions | Yield |
---|---|
100% | |
at 20 - 160℃; for 2h; Inert atmosphere; |
4-nitro-phenol
1,1,3,3-tetramethyldisilazane
Dimethyl-(4-nitro-phenoxy)-silane
Conditions | Yield |
---|---|
100% | |
at 20 - 160℃; for 2h; Inert atmosphere; |
Conditions | Yield |
---|---|
100% | |
at 20 - 160℃; for 2h; Inert atmosphere; |
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The 1,1,3,3-Tetramethyldisilazane, with the CAS registry number 15933-59-2 and EINECS registry number 240-072-2, has the systematic name of N-(dimethylsilyl)-1,1-dimethylsilanamine. It is a kind of clear colorless to faintly yellow liquid which is moisture Sensitive, and it belongs to the following product categories: Analytical Chemistry; Dimethylsilylation (GC Derivatizing Reagents); GC Derivatizing Reagents; Si (Classes of Silicon Compounds); Si-H Compounds; Silazanes; Silylation (GC Derivatizing Reagents); Si-N Compounds. The molecular formula of the chemical is C4H15NSi2.
The characteristics of 1,1,3,3-Tetramethyldisilazane as followings: (1)ACD/LogP: 3.49; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.41; (4)ACD/LogD (pH 7.4): 1.16; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1.25; (7)ACD/KOC (pH 5.5): 1.59; (8)ACD/KOC (pH 7.4): 8.93; (9)#H bond acceptors: 1; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 3.24 Å2; (13)Enthalpy of Vaporization: 33.11 kJ/mol; (14)Boiling Point: 91.1 °C at 760 mmHg; (15)Vapour Pressure: 54.6 mmHg at 25°C.
Uses of 1,1,3,3-Tetramethyldisilazane: It can react with phenol to produce dimethylphenoxysilane. This reaction will need reagent triethylamine and dimethylchlorosilane. The reaction time is 1 hour with temperature below 40°C, and the yield is about 57%.
You should be cautious while dealing with this chemical. It is a kind of highly flammable chemical which irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Keep away from sources of ignition - No smoking; Wear suitable protective clothing; In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.
Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: N([SiH](C)C)[SiH](C)C
(2)InChI: InChI=1/C4H15NSi2/c1-6(2)5-7(3)4/h5-7H,1-4H3
(3)InChIKey: NQCZAYQXPJEPDS-UHFFFAOYAW