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15481-39-7

Basic Information
CAS No.: 15481-39-7
Name: BROMINE-1,4-DIOXANE COMPLEX
Article Data: 9
Molecular Structure:
Molecular Structure of 15481-39-7 (BROMINE-1,4-DIOXANE COMPLEX)
Formula: C4H8Br2O2
Molecular Weight: 247.914
Synonyms: 1,4-DIOXANE-BROMINE COMPLEX;1 4-DIETHYLENE DIOXIDE DIBROMIDE;BROMINE-1,4-DIOXANE COMPLEX;GLYCOL ETHYLENE ETHER DIBROMIDE;DIOXYETHYLENE ETHER DIBROMIDE;DIOXANE DIBROMIDE;DI(ETHYLENE OXIDE) DIBROMIDE;DIETHYLENE ETHER DIBROMIDE
Density: g/cm3
Melting Point: 66 °C
Boiling Point: 95 °C
Flash Point: 12.2°C
PSA: 18.46000
LogP: 1.72440
Synthetic route
123-91-1

1,4-dioxane

7726-95-6

bromine

15481-39-7

dioxane dibromide

Conditions
ConditionsYield
at 20℃; for 2h; Cooling with ice;65%
123-91-1

1,4-dioxane

15481-39-7

dioxane dibromide

Conditions
ConditionsYield
With bromine at 0 - 23℃; for 3h;57%
With bromine
With bromine10 g
75-21-8

oxirane

15481-39-7

dioxane dibromide

Conditions
ConditionsYield
With bromine im geschlossenen Gefaess;
15481-39-7

dioxane dibromide

162976-09-2

2,4-diethoxy-3-methylphenol

1061630-50-9

6-bromo-2,4-diethoxy-3-methylphenol

Conditions
ConditionsYield
With potassium carbonate In dichloromethane at -78 - 20℃; for 0.916667h;88%
15481-39-7

dioxane dibromide

7-cinnamyloxy-4-methylcoumarin

1374992-44-5

3-bromo-7-(2,3-dibromo-3-phenylpropoxy)-4-methylcoumarin

Conditions
ConditionsYield
at 0 - 20℃; for 4h; Neat (no solvent); regioselective reaction;86%
2555-28-4

4-methyl-7-methoxy-2H-1-benzopyran-2-one

15481-39-7

dioxane dibromide

75908-67-7

3-bromo-7-methoxy-4-methylcoumarin

Conditions
ConditionsYield
at 0 - 20℃; for 2h; Neat (no solvent); regioselective reaction;85%
90-33-5, 79566-13-5

7-hydroxy-4-methyl-chromen-2-one

15481-39-7

dioxane dibromide

55977-10-1

3-bromo-7-hydroxy-4-methyl-chromen-2-one

Conditions
ConditionsYield
at 0 - 20℃; for 3h; Neat (no solvent); regioselective reaction;84%
607-71-6

4-methyl-2H-chromen-2-one

15481-39-7

dioxane dibromide

50361-81-4

3-bromo-4-hydroxycoumarin

Conditions
ConditionsYield
at 0 - 20℃; for 2h; Neat (no solvent); regioselective reaction;83%
31005-03-5

7-allyloxycoumarin

15481-39-7

dioxane dibromide

7-(2,3-dibromopropoxy)coumarin

Conditions
ConditionsYield
at 0 - 20℃; for 0.5h; Neat (no solvent); regioselective reaction;83%
922509-12-4

bis[4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-amidophenolato]tin(IV) tetrahydrofuratate

15481-39-7

dioxane dibromide

dibromobis(4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-iminobenzosemiquinonato)tin(IV)

Conditions
ConditionsYield
In acetonitrile exclusion of air and moisture; soln. of Br2*diox (1 mmol) in MeCN added dropwise to soln. of Sn complex (1 mmol) in MeCN; soln. concd., stored at -12°C for 12 h, crystals isolated; elem. anal.;82.3%
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