2,2,5-Trimethyl-1,3-dioxane-4,6-dione
Names
[ CAS No. ]:
3709-18-0
[ Name ]:
2,2,5-Trimethyl-1,3-dioxane-4,6-dione
[Synonym ]:
2,2,5-Trimethyl-1,3-dioxane-4,6-dione
EINECS 223-050-7
Methylmalonic acid cyclic isopropylidene ester
5-methyl-Meldrum's acid
Methyl Meldrum's acid
1,3-Dioxane-4,6-dione, 2,2,5-trimethyl-
MFCD00006637
isopropylidene methylmalonic acid ester
2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HY
cycl-Isopropylidene methylmalonate
Chemical & Physical Properties
[ Density]:
1.1±0.1 g/cm3
[ Boiling Point ]:
343.6±35.0 °C at 760 mmHg
[ Melting Point ]:
111-114 °C(lit.)
[ Molecular Formula ]:
C7H10O4
[ Molecular Weight ]:
158.152
[ Flash Point ]:
183.4±24.4 °C
[ Exact Mass ]:
158.057907
[ PSA ]:
52.60000
[ LogP ]:
-0.90
[ Vapour Pressure ]:
0.0±0.8 mmHg at 25°C
[ Index of Refraction ]:
1.427
[ Storage condition ]:
2-8°C
MSDS
Safety Information
[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
[ Hazard Codes ]:
Xi
[ Safety Phrases ]:
S23-S24/25
[ RIDADR ]:
NONH for all modes of transport
[ WGK Germany ]:
3
[ HS Code ]:
2934999090
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2934999090
[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%
Articles
Mol. Divers. 10(2) , 247-50, (2006)
The adduct produced in the reaction between alkyl isocyanides and dialkyl acetylenedicarboxylates was trapped by 2,2,5-trimethyl-1,3-dioxane-4,6-dione (methyl Meldrum's acid), to afford highly functio...
An ESR, ENDOR, and ELDOR study of tunneling rotation of a hindered methyl group in x-irradiated 2, 2, 5-trimethyl-1, 3-dioxane-4, 6-dione crystals. Geoffroy M, et al.J. Chem. Phys. 70(9) , 4238-42, (2008)