(Triphenylsilyl)acetylene
- CAS number
- 6229-00-1
- Molecular formula
- C20H16Si
- Molecular weight
- 284.4 g/mol
- Standard packing
- 1kg / 25kg / 100kg
CAS 6229-00-1, (Triphenylsilyl)acetylene, enters the catalogue as a C20H16Si alkyne with a molecular weight of 284.4.
Terminal alkynes also dimerise and oligomerise under the wrong conditions, so the copper and palladium loading of the coupling step is the thing to control. The protecting group is the reason the entry exists: it is carried through the steps that would otherwise attack the group underneath, and removed when that group is wanted.
The formula C20H16Si resolves to 20 carbons with one silicon. With 20 carbons the lipophilicity dominates: solubility in polar media falls away and the work-up is usually a phase separation.
Handling and storage
The container is kept sealed and out of light. Alkynes are checked for the coupled diyne before use, because that is the impurity that builds on standing.
Ordering
Quoted from stock in 1kg / 25kg / 100kg, or made to order where the lot has run down. Either way the same release testing applies. Identity is confirmed by NMR and MS at release, and the assay value belongs to the lot rather than to the catalogue entry.
Other boronic acids & coupling reagents entries
| CAS | Compound | Formula | MW | Packing | Quote |
|---|---|---|---|---|---|
| 72931-54-5 | (3,3-Diisopropoxypropyl)triphenylphosphonium bromide | C27H34BrO2P | 501.4 | 1kg / 25kg / 100kg | Request |
| 223576-64-5 | (5-Chlorobenzofuran-2-yl)boronic acid | C8H6BClO3 | 196.40 | 1kg / 25kg / 100kg | Request |
| 21692-54-6 | 1-[2-(Triethylsilyl)ethynyl]cyclohexene | C14H24Si | 220.42 | 1kg / 25kg / 100kg | Request |
| 5272-36-6 | 3-(Trimethylsilyl)propargyl alcohol | C6H12OSi | 128.24 | 1kg / 25kg / 100kg | Request |
| 886593-45-9 | 4-(2-hydroxypropan-2-yl)phenylboronic acid | C9H13BO3 | 180.01 | 1kg / 25kg / 100kg | Request |
| 5930-98-3 | 4-(Trimethylsilyl)-3-butyn-2-one | C7H12OSi | 140.25 | 1kg / 25kg / 100kg | Request |
| 1679-18-1 | 4-Chlorophenylboronic acid | C6H6BClO2 | 156.38 | 1kg / 25kg / 100kg | Request |
| 1560-54-9 | Allyltriphenylphosphonium bromide | C21H20BrP | 383.3 | 1kg / 25kg / 100kg | Request |
Ask about (Triphenylsilyl)acetylene
The form below is pre-filled with this entry. Add the quantity, the specification you need to meet and the destination, and a written quotation follows within one business day.
| Entry | (Triphenylsilyl)acetylene |
|---|---|
| CAS | 6229-00-1 |
| Typical lead time | Stock or 2–4 weeks |
| Documentation | COA, SDS, spec sheet |
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(Triphenylsilyl)acetylene (6229-00-1)