Di-tert-butyl acetylenedicarboxylate
Synonym(s):2-Butynedioic acid di-tert-butyl ester;Di-tert-butyl 2-butynedioate
- CAS NO.：66086-33-7
- Empirical Formula: C12H18O4
- Molecular Weight: 226.27
- MDL number: MFCD00008808
- EINECS: 266-135-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:47:38
What is Di-tert-butyl acetylenedicarboxylate?
General Description
The cross-cyclotrimerization of di-tert-butyl acetylenedicarboxylate, silylacetylenes and acrylamides was studied with cationic rhodium(I)/(R)-tol-binap complex as catalyst. Glycosyl azides were subjected to 1,3-dipolar cycloaddition with di-tert-butyl acetylenedicarboxylate.
Properties of Di-tert-butyl acetylenedicarboxylate
| Melting point: | 33-37 °C(lit.) |
| Boiling point: | 80-82 °C0.05 mm Hg(lit.) |
| Density | 1.0238 (rough estimate) |
| refractive index | 1.4560 (estimate) |
| Flash point: | >230 °F |
| storage temp. | 2-8°C |
| BRN | 1957547 |
Safety information for Di-tert-butyl acetylenedicarboxylate
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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 Di-tert-butyl acetylenedicarboxylate
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