| Identification | Back Directory | [Name]
1,1-DiMethyl-1,3-dihydrobenzo[c][1,2]oxasilole | [CAS]
321903-29-1 | [Synonyms]
1,1-Dimethyl-1,3-dihydro-2,1-benzoxasilole
2,1-Benzoxasilole, 1,3-dihydro-1,1-dimethyl-
1,1-DiMethyl-1,3-dihydrobenzo[c][1,2]oxasilole
1,1-Dimethyl-1,3-dihydro-2,1-benzoxasilole 95%
1,1-Dimethyl-1,3-dihydrobenzo[c][1,2]oxasilole>
1,1-Dimethyl-1,3-dihydrobenzo[c][1,2]oxasilole | [EINECS(EC#)]
805-554-4 | [Molecular Formula]
C9H12OSi | [MDL Number]
MFCD20922818 | [MOL File]
321903-29-1.mol | [Molecular Weight]
164.276 |
| Chemical Properties | Back Directory | [Boiling point ]
45°C/2mmHg(lit.) | [density ]
1.01±0.1 g/cm3(Predicted) | [refractive index ]
1.5140-1.5180 | [solubility ]
generally sol most organic solvents. | [form ]
clear liquid | [color ]
Colorless to Almost colorless |
| Hazard Information | Back Directory | [Physical properties]
bp 45°C/2.0 mmHg. | [Uses]
2,1-Benzoxasilole, 1,3-dihydro-1,1-
dimethyl-?1 can reaction with Alkenyl and Aryl Nucleophiles. This reagent
reacts with various alkenyl- and arylmetallic reagents such as
Grignard reagents and organolithium reagents through cleavage/
formation of the Si–O/Si–C bonds to give alkenyl- or aryl[2-
(hydroxymethyl)phenyl]dimethylsilanes in good yields after
conventional aqueous workup (eq 2).![Reactions of 1,1-DiMethyl-1,3-dihydrobenzo[c][1,2]oxasilole](https://www.chemicalbook.com/NewsImg/2021-08-31/20210831100008881457990831.jpg "Reactions of 1,1-DiMethyl-1,3-dihydrobenzo[c][1,2]oxasilole") | [Preparation]
by the halogen¨Clithium exchange reaction
of 2-(2-tetrahydro-2H-pyranoxymethyl)bromobenzene followed
by treatment with chlorodimethylsilane and subsequently
with a catalytic amount of p-toluenesulfonic acid in MeOH
(eq 1). The reagent is isolated by distillation under reduced
pressure. Large quantities can be prepared and stored in a
refrigerator.
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