Azidotrimethylsilane
- Product Name
- Azidotrimethylsilane
- CAS No.
- 4648-54-8
- Chemical Name
- Azidotrimethylsilane
- Synonyms
- TMSN3;TRIMETHYLSILYL AZIDE;TMSiA;(CH3)3SiN3;decomposes;Trimethylazidosilane;Three methyl azide silane;CFS-548;AzidotrimethyL;Co-Formula CFS-548
- CBNumber
- CB3444416
- Molecular Formula
- C3H9N3Si
- Formula Weight
- 115.21
- MOL File
- 4648-54-8.mol
Azidotrimethylsilane Property
- Melting point:
- -95°C
- Boiling point:
- 92-95 °C(lit.)
- Density
- 0.876 g/mL at 20 °C(lit.)
- refractive index
- n20/D 1.415(lit.)
- Flash point:
- 74 °F
- storage temp.
- 2-8°C
- solubility
- Miscible with toluene, dichloromethane, diethyl ether and most organic solvents.
- form
- Liquid
- Specific Gravity
- 0.868
- color
- Clear colorless to slightly yellow
- Water Solubility
- decomposes
- Sensitive
- Moisture Sensitive
- Hydrolytic Sensitivity
- 8: reacts rapidly with moisture, water, protic solvents
- BRN
- 1903730
- InChIKey
- SEDZOYHHAIAQIW-UHFFFAOYSA-N
- CAS DataBase Reference
- 4648-54-8(CAS DataBase Reference)
- NIST Chemistry Reference
- Azidotrimethylsilane(4648-54-8)
- EPA Substance Registry System
- Azidotrimethylsilane (4648-54-8)
Safety
- Hazard Codes
- F,T,N
- Risk Statements
- 11-23/24/25-50/53-29
- Safety Statements
- 16-36/37/39-45-8-57-36/37-29
- RIDADR
- UN 1992 3/PG 2
- WGK Germany
- 3
- F
- 10-33
- Autoignition Temperature
- 300 °C
- TSCA
- Yes
- HazardClass
- 3
- PackingGroup
- II
- HS Code
- 29310095
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H225Highly Flammable liquid and vapour
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- 155071
- Product name
- Azidotrimethylsilane
- Purity
- 95%
- Packaging
- 10g
- Price
- $107
- Updated
- 2024/03/01
- Product number
- 8.18026
- Product name
- Trimethylsilyl azide
- Purity
- for synthesis
- Packaging
- 25mL
- Price
- $147
- Updated
- 2024/03/01
- Product number
- 155071
- Product name
- Azidotrimethylsilane
- Purity
- 95%
- Packaging
- 50g
- Price
- $310
- Updated
- 2024/03/01
- Product number
- T0801
- Product name
- Trimethylsilyl Azide
- Purity
- >95.0%(GC)
- Packaging
- 5g
- Price
- $26
- Updated
- 2024/03/01
- Product number
- T0801
- Product name
- Trimethylsilyl Azide
- Purity
- >95.0%(GC)
- Packaging
- 25g
- Price
- $76
- Updated
- 2024/03/01
Azidotrimethylsilane Chemical Properties,Usage,Production
Chemical Properties
clear colorless to slightly yellow liquid
Physical properties
bp 95–96°C; n20 D 1.416; d 0.868 g cm?3; fp23°C; IR νmax 2100 cm?1; 1H NMR (CDCl3) δ = 0.22.
Uses
Trimethylsilyl azide is used as an azidonation reagent for amines, amides, aldehydes and ketones. It is involved in the preparation of alfa- and beta-siloxy azides from carbonyl compounds and epoxides. It is also used in the preparation of heterocyclic compounds and also acts as an effective substitute for hydrazoic acid. Further, it is used in the Oseltamivir total synthesis.
Uses
Versatile azidonation reagent for amines, amides, aldehydes, and ketones.
Uses
Many applications of TMSA in organic synthesis have been reported but only representative examples are described herein.
Substitution Reactions.
Benzyl,allyl,and substituted alkyl halides are converted to the corresponding azides in 60–100% yields via reactions with TMSA under neutral conditions in a nonaqueous solvent (eq 1).By using tin(IV) chloride as a catalyst, secondary and tertiary cyclic and polycyclic halides are similarly transformed into the corresponding azides in 50–92% yields (eq 1).
Preparation
several methods for the synthesis of this azide have been reported.The procedure involving aluminum chloride is not recommended, since an explosive product is formed.Azidotrimethylsilane is now commercially available, and a representative synthetic procedure is as follows. A mixture of sodium azide and chlorotrimethylsilane is refluxed in di-n-butyl ether for 2 days and the azide is safely distilled directly from the reaction vessel. Purer compound (99% content) is obtained by redistillation of the product. Several improved conditions have been reported for the preparation of this azide.In these procedures, trimethylsilyl chloride is reacted with sodium azide either neat or in a high boiling point solvent, such as a mixture of silicone oil and polyethylene glycol. Distillation of the crude product usually provides trimethylsilyl azide (TMSA) in high purity (97.9%) and yield (97%).
Purification Methods
Distil the azide through a Vigreux column (p 11) in a N2 atmosphere maintaining the oil bath temperature thermostat at 135-140o . Check the purity by 1H NMR [CHCl3, : single peak at 13cps from Me4Si]. Likely impurities are siloxane hydrolysis products. The azide is thermally stable even at 200o when it decomposes slowly without explosive violence. All the same, it is advisable to carry out the distillation behind a thick safety screen in a fumehood because unforseen EXPLOSIVE azides may be formed on long standing. [Birkofer & Wagner Org Synth Coll Vol VI 1030 1988.]
Azidotrimethylsilane Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Azidotrimethylsilane manufacturers
- Product
- Azidotrimethylsilane 4648-54-8
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-11-21
- Product
- Azidotrimethylsilane 4648-54-8
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99.8%
- Supply Ability
- 100tons
- Release date
- 2024-08-16
- Product
- Azidotrimethylsilane 4648-54-8
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-06-21