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: 2022-11-11 11:01:00

DI-TERT-BUTYL ACETYLENEDICARBOXYLATE Structural

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.