2,5-Dimethoxy-2,5-dihydrofuran
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2,5-Dimethoxy-2,5-dihydrofuran
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CAS No:
332-77-4
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Formula:
C6H10O3
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Chemical Name:
2,5-Dimethoxy-2,5-dihydrofuran
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Synonyms:
Furan,2,5-dihydro-2,5-dimethoxy-;2,5-Dihydro-2,5-dimethoxyfuran;2,5-Dimethoxy-2,5-dihydrofuran;NSC 43243
- Categories:
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CAS No:
2,5-Dimethoxy-2,5-dihydrofuran Basic Attributes
130.14
130.14
113225
206-367-5
A31695LI9A
43243
29321900
Characteristics
27.7
-1.00
Clear Liquid
1.073 g/cm3 @ Temp: 20 °C
161 °C
117 °F
1.448
Store below +30°C.
1.1-18.3%(V)
Safety Information
III
3
UN 1993 3/PG 3
1
10
16-29-33-24/25
Xn:Harmful;
Stable under normal temperatures and pressures.
P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P312, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P312, P330, P337+P313, P370+P378, P403+P235, P501
H226
|Warning|H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P312, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P312, P330, P337+P313, P370+P378, P403+P235, and P501|Aggregated GHS information provided by 157 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,5-Dimethoxy-2,5-dihydrofuran Use and Manufacturing
It is obtained by etherification and reduction of furan. The reaction takes place in an electrolytic cell. Add methanol and ammonium bromide into the electrolytic tank and stir until the ammonium bromide is dissolved. When the solution is cooled to 0°C, add furan, seal the electrolytic cell and continue to cool to below -5°C, turn on the electrolysis circuit and input current. After normal operation, gradually adjust the voltage to about 15V and the current to 40-45A. The electrolysis temperature is controlled at 0-5°C. After the electrolysis is over, the stirring is stopped, and the electrolyte is sucked into the methanol recovery pot for alkalization. Then heat to drive off the ammonia gas and distill out the methanol. When the gas phase temperature reaches 65°C, the methanol recovery is complete. Cool, filter, and fractionate the filtrate to collect the positive boiling point fraction at 152-164°C to obtain 2, 5-dimethoxydihydrofuran.
Used as pharmaceutical intermediate
Furan, 2,5-dihydro-2,5-dimethoxy-: ACTIVE
Computed Properties
Molecular Weight:130.14
XLogP3:0.3
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:2
Exact Mass:130.062994177
Monoisotopic Mass:130.062994177
Topological Polar Surface Area:27.7
Heavy Atom Count:9
Complexity:98.9
Undefined Atom Stereocenter Count:2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Recommended Suppliers of 2,5-Dimethoxy-2,5-dihydrofuran
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