270822
Di-tert-butyl acetylenedicarboxylate
98%
Synonym(s):
2-Butynedioic acid di-tert-butyl ester, Di-tert-butyl 2-butynedioate
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About This Item
Linear Formula:
(CH3)3COCOC≡CCOOC(CH3)3
CAS Number:
Molecular Weight:
226.27
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
266-135-4
Beilstein/REAXYS Number:
1957547
MDL number:
Assay:
98%
Form:
solid
InChI key
FBCRUXRGQFLOMC-UHFFFAOYSA-N
InChI
1S/C12H18O4/c1-11(2,3)15-9(13)7-8-10(14)16-12(4,5)6/h1-6H3
SMILES string
CC(C)(C)OC(=O)C#CC(=O)OC(C)(C)C
assay
98%
form
solid
bp
80-82 °C/0.05 mmHg (lit.)
Quality Level
functional group
ester
Related Categories
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.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
target_organs
Respiratory system
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 3
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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W Bröder et al.
Carbohydrate research, 249(1), 221-241 (1993-10-18)
Glycosyl azides provide reliable anomeric protection stable to conditions for hydrolytic removal of ester groups, for reductive opening or release of acetalic diol protection, for the introduction of ether-type protection, and for glycosylation processes. The utility of this anomeric protection
Jun Hara et al.
Angewandte Chemie (International ed. in English), 53(11), 2956-2959 (2014-02-08)
It has been established that a cationic rhodium(I)/(R)-tol-binap complex catalyzes the cross-cyclotrimerization of silylacetylenes, di-tert-butyl acetylenedicarboxylates, and acrylamides with excellent chemo-, regio-, and enantioselectivities. Unsymmetrical alkynoates can also be employed in place of di-tert-butyl acetylenedicarboxylate for this process, but with
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