1-Bromobenzocyclobutene
- CAS NO.：21120-91-2
- Empirical Formula: C8H7Br
- Molecular Weight: 183.05
- MDL number: MFCD00799491
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:16:29
What is 1-Bromobenzocyclobutene?
Chemical properties
Colorless to pale yellow liquid
The Uses of 1-Bromobenzocyclobutene
1-Bromobenzocyclobutene may be used in the synthesis of following compounds:
- five-membered zirconacycles
- benzocyclobutenol and benzocyclobutenone
- 2,3-dimethoxyprotoberberinium bromide, via reaction with 3,4-dihydro-6,7-dimethoxyisoquinoline
General Description
1-Bromobenzocyclobutene is a useful synthon. It has important applications in organometallic methodology. Reaction between cycloheptatriene, bromoform, potassium carbonate and 18-crown-6 at 140°C yields 1-bromobenzocyclobutene.
Properties of 1-Bromobenzocyclobutene
| Boiling point: | 90 °C/10.5 mmHg (lit.) |
| Density | 1.45 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 205 °F |
| storage temp. | Sealed in dry,Room Temperature |
Safety information for 1-Bromobenzocyclobutene
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1-Bromobenzocyclobutene
| InChIKey | JQOFZAWKFBCSHK-UHFFFAOYSA-N |
New Products
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