| Identification | More | [Name]
Chloromethyltrimethoxysilane | [CAS]
5926-26-1 | [Synonyms]
CHLOROMETHYLTRIMETHOXYSILANE
(trimethoxychloromethyl)silane
chloromethyl-trimethoxy-silan
ND-40
(Trimethoxysilyl)chloromethane | [Molecular Formula]
C4H11ClO3Si | [MDL Number]
MFCD00468107 | [Molecular Weight]
170.67 | [MOL File]
5926-26-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Clear transparent liquid | [Boiling point ]
151 °C (lit.) | [density ]
1.132 g/mL at 25 °C(lit.)
| [refractive index ]
1.407 [25°C] | [Fp ]
26 °F
| [storage temp. ]
Storage temp. 2-8°C | [form ]
clear liquid | [color ]
Colorless to Almost colorless | [Specific Gravity]
1.125 | [Hydrolytic Sensitivity]
7: reacts slowly with moisture/water | [InChI]
InChI=1S/C4H11ClO3Si/c1-6-9(4-5,7-2)8-3/h4H2,1-3H3 | [InChIKey]
FPOSCXQHGOVVPD-UHFFFAOYSA-N | [SMILES]
[Si](CCl)(OC)(OC)OC | [CAS DataBase Reference]
5926-26-1(CAS DataBase Reference) | [NIST Chemistry Reference]
Silane, chloromethyl-trimethoxy-(5926-26-1) |
| Safety Data | Back Directory | [Hazard Codes ]
F | [Risk Statements ]
R11:Highly Flammable. | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S29:Do not empty into drains .
S33:Take precautionary measures against static discharges . | [RIDADR ]
UN 1993 3/PG 2
| [WGK Germany ]
3
| [RTECS ]
VV2625000 | [TSCA ]
No | [HazardClass ]
3 | [PackingGroup ]
II | [HS Code ]
29319090 |
| Hazard Information | Back Directory | [Chemical Properties]
Clear transparent liquid | [Uses]
Chloromethyltrimethoxysilane may be used in the preparation of 1-methyl-1H-benzimidazole (MBI)-modified nanoparticles.{33} Mesoporous monolithic silica gels can also be prepared from Chloromethyltrimethoxysilane. {34} | [General Description]
Chloromethyltrimethoxysilane (CMTMS) is a trialkoxysilane with chloromethyl as the organofunctional group having hydrophobic characteristics. Chloromethyl is the electron withdrawing group that improves the mechanical properties of the molecule. CMTMS is mainly utilized as a silane based precursor material for the preparation of surface enhancement based coatings and other silane based products. | [Synthesis]
The general procedure for the synthesis of chloromethyltrimethoxysilane from chloromethyltrichlorosilane and trimethyl orthoformate was as follows: 570.2 g (3.1 mol) of chloromethyltrichlorosilane was slowly added dropwise to 1127.8 g (10.64 mol) of trimethyl orthoformate, and the dropwise acceleration was controlled so that the reaction mixture was kept at a slight boiling state. After the dropwise addition was completed, the reaction system was heated to 90°C and the reaction was maintained at this temperature for 5 hours. Upon completion of the reaction, the reaction mixture was purified by distillation, resulting in 449.8 g of the target product chloromethyltrimethoxysilane (Compound 2a). The structure of the product was confirmed by 1H NMR spectrum with the following chemical shifts δ (ppm): 2.77 (single peak, 2H, CH2), 3.58 (single peak, 9H, OCH3). | [References]
[1] Russian Journal of General Chemistry, 2016, vol. 86, # 8, p. 1859 - 1863
[2] Zh. Obshch. Khim., 2016, vol. 86, # 8, p. 1321 - 1326,6 |
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