Product Name

  • Name

    1,4-Dioxane

  • EINECS 204-661-8
  • CAS No. 123-91-1
  • Article Data152
  • CAS DataBase
  • Density 0.995 g/cm3
  • Solubility soluble in water
  • Melting Point 12 °C
  • Formula C4H8O2
  • Boiling Point 102.9 °C at 760 mmHg
  • Molecular Weight 88.1063
  • Flash Point 12.2 °C
  • Transport Information UN 1993 3/PG 2
  • Appearance colourless liquid
  • Safety 9-16-36/37-46-45-53-7-62-26-24/25-23
  • Risk Codes 45-46-11-36/38-48/23/24/25-65-66-40-36/37-19-41-37/38-39/23/24/25-23/24/25-48/20/22-38-22-36/37/38
  • Molecular Structure Molecular Structure of 123-91-1 (1,4-Dioxane)
  • Hazard Symbols FlammableF,HarmfulXn
  • Synonyms Diethylene dioxide;p-Dioxan;NCI-C03689;1, 4-Diethylene dioxide;Silane,[1,3-dioxan-5-ylidenebis(methyleneoxy)]- bis-;Diossano-1,4;Dioxane;Dioxan-1, 4;Diethylene ether;1,4-Dioxan;Di (ethylene oxide);Tetrahydro-p-dioxin;Dioxaan-1,4;Tetrahydro-1,4-dioxin;Glycol ethylene ether;Dioxanne;Dioksan;Dioxane-1,4;Diokan;Dioxan;p-dioxane;Dioxyethylene ether;
  • PSA 18.46000
  • LogP 0.03320

Synthetic route

C4H10O2*C10H15(1-)*C24BF20(1-)*Si(2+)

C4H10O2*C10H15(1-)*C24BF20(1-)*Si(2+)

A

1,4-dioxane
123-91-1

1,4-dioxane

B

1,2-dimethoxyethane
110-71-4

1,2-dimethoxyethane

C

Dimethyl ether
115-10-6

Dimethyl ether

D

Cp*Si(1+)* B(C6F5)4(1-)

Cp*Si(1+)* B(C6F5)4(1-)

Conditions
ConditionsYield
In dichloromethane-d2 for 120h;A n/a
B n/a
C n/a
D 100%
oxirane
75-21-8

oxirane

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With BPA; triethylamine In water; isopropyl alcohol at 55 - 65℃; under 1500.15 Torr; for 8h; Reagent/catalyst; Temperature; Solvent; Inert atmosphere; Autoclave; Large scale;99%
With sulfuric acid; water
beim Erwaermen einer Suspension von Bleicherde in Dioxan;
ethylene glycol
107-21-1

ethylene glycol

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With copper(ll) bromide at 175℃; for 5h; Inert atmosphere; Sealed tube;99%
Nafion-H at 135℃; for 5h;50%
With aluminium phosphate aluminium oxide catalyst Product distribution; Heating;2%
diethylene glycol
111-46-6

diethylene glycol

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With copper(ll) bromide at 175℃; for 10h; Inert atmosphere; Sealed tube;99%
With hafnium tetrakis(trifluoromethanesulfonate) In neat (no solvent) at 180℃; for 4.5h;85%
With sulfuric acid durch kontinuierliche Destillation;
2,2'-[1,2-ethanediylbis(oxy)]bisethanol
112-27-6

2,2'-[1,2-ethanediylbis(oxy)]bisethanol

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With copper(ll) bromide at 175℃; for 6h; Inert atmosphere; Sealed tube;99%
With Sulfate; zirconium(IV) oxide at 180℃; for 1.41667h; cyclodehydration;
diethyl malonate
105-53-3

diethyl malonate

A

1,4-dioxane
123-91-1

1,4-dioxane

B

2-acetylaminomalonic acid diethyl ester
1068-90-2

2-acetylaminomalonic acid diethyl ester

Conditions
ConditionsYield
With acetic acid; sodium nitrite In waterA n/a
B 86%
diethylene glycol dimethyl ether
111-96-6

diethylene glycol dimethyl ether

A

1,4-dioxane
123-91-1

1,4-dioxane

B

Dimethyl ether
115-10-6

Dimethyl ether

Conditions
ConditionsYield
With iron(III) trifluoromethanesulfonate In hexane at 100℃; for 48h; Glovebox;A 75%
B n/a
ethylene glycol
107-21-1

ethylene glycol

A

1,4-dioxane
123-91-1

1,4-dioxane

B

2-chloroethanal
107-20-0

2-chloroethanal

Conditions
ConditionsYield
With tetrachloromethane; bis(acetylacetonate)oxovanadium at 100℃; for 1h;A 20%
B 72%
ethylene glycol
107-21-1

ethylene glycol

A

1,4-dioxane
123-91-1

1,4-dioxane

B

diethylene glycol
111-46-6

diethylene glycol

Conditions
ConditionsYield
With sulfuric acid In neat (no solvent) at 150℃; under 1147.61 Torr; for 24h; Time; Autoclave;A 9%
B 65%
With Cs-P-Si at 300℃; under 75006 Torr;
ethylene glycol
107-21-1

ethylene glycol

A

2-methyl-1,3-dioxolane
497-26-7

2-methyl-1,3-dioxolane

B

1,4-dioxane
123-91-1

1,4-dioxane

C

acetaldehyde
75-07-0

acetaldehyde

D

diethylene glycol
111-46-6

diethylene glycol

Conditions
ConditionsYield
With tungsten trioxide on silica; hydrogen In water at 340℃; Temperature; Inert atmosphere;A 38.8%
B 28.7%
C 44.9%
D n/a
oxirane
75-21-8

oxirane

A

1,4-dioxane
123-91-1

1,4-dioxane

B

2-fluoroethanol
371-62-0

2-fluoroethanol

Conditions
ConditionsYield
With hydrogen fluoride under 380 Torr; Product distribution;A 37%
B 5%
3-oxa-1,5-dichloropentane
111-44-4

3-oxa-1,5-dichloropentane

methylamine
74-89-5

methylamine

A

1,4-dioxane
123-91-1

1,4-dioxane

B

4-methyl-morpholine
109-02-4

4-methyl-morpholine

C

1,1'-oxybisethene
109-93-3

1,1'-oxybisethene

D

2-chloroetyl vinyl ether
110-75-8

2-chloroetyl vinyl ether

Conditions
ConditionsYield
With sodium hydroxide In water at 90 - 95℃; for 4h;A 12%
B 25%
C 20%
D 7%
oxirane
75-21-8

oxirane

perfluoropropylene
116-15-4

perfluoropropylene

A

1,4-dioxane
123-91-1

1,4-dioxane

B

2-(1,1,2,3,3,3-hexafluoropropyl)-1,4-dioxane
94412-88-1

2-(1,1,2,3,3,3-hexafluoropropyl)-1,4-dioxane

C

3,3,4,5,5,5-hexafluoropentan-2-one
60249-67-4

3,3,4,5,5,5-hexafluoropentan-2-one

Conditions
ConditionsYield
Irradiation;A 16%
B 5%
C 0.8%
oxirane
75-21-8

oxirane

triethyloxonium fluoroborate
368-39-8

triethyloxonium fluoroborate

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With diethyl ether
Cbz-L-Gln
2650-64-8

Cbz-L-Gln

N-L-asparaginyl-S-benzyl-L-cysteine methyl ester
86961-92-4

N-L-asparaginyl-S-benzyl-L-cysteine methyl ester

A

1,4-dioxane
123-91-1

1,4-dioxane

B

S-benzyl-N-[N2-(N2-benzyloxycarbonyl-L-glutaminyl)-L-asparaginyl]-L-cysteine methyl ester
2658-34-6

S-benzyl-N-[N2-(N2-benzyloxycarbonyl-L-glutaminyl)-L-asparaginyl]-L-cysteine methyl ester

Conditions
ConditionsYield
With tetrahydrofuran; chloroformic acid ethyl ester; triethylamine Reagens 4: H2O;
ethanol
64-17-5

ethanol

ethylamine
75-04-7

ethylamine

2-Chloronitrobenzene
88-73-3

2-Chloronitrobenzene

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
at 57℃; Rate constant;
ethylene glycol
107-21-1

ethylene glycol

(E)-3-Ureido-but-2-enoic acid ethyl ester
5435-44-9, 22243-66-9

(E)-3-Ureido-but-2-enoic acid ethyl ester

A

2-methyl-1,3-dioxolane
497-26-7

2-methyl-1,3-dioxolane

B

1,4-dioxane
123-91-1

1,4-dioxane

C

acetaldehyde
75-07-0

acetaldehyde

ethylene glycol
107-21-1

ethylene glycol

ethylene dibromide
106-93-4

ethylene dibromide

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
at 160℃; im Rohr;
ethylene glycol
107-21-1

ethylene glycol

ethylene dibromide
106-93-4

ethylene dibromide

A

1,4-dioxane
123-91-1

1,4-dioxane

B

2-(2′-(2″-bromoethoxy)ethoxy)ethanol
57641-67-5

2-(2′-(2″-bromoethoxy)ethoxy)ethanol

C

2-(2-bromoethoxy)ethan-1-ol
57641-66-4

2-(2-bromoethoxy)ethan-1-ol

D

2-bromoethanol
540-51-2

2-bromoethanol

Conditions
ConditionsYield
at 160℃;
2-(2-Chloroethoxy)ethanol
628-89-7

2-(2-Chloroethoxy)ethanol

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With potassium hydroxide; water
With sodium hydroxide; water
formaldehyd
50-00-0

formaldehyd

Propiolaldehyde diethyl acetal
10160-87-9

Propiolaldehyde diethyl acetal

diethylamine
109-89-7

diethylamine

A

1,4-dioxane
123-91-1

1,4-dioxane

B

4-diethylamino-but-2-ynal diethyl acetal
5799-78-0

4-diethylamino-but-2-ynal diethyl acetal

3-oxa-1,5-dichloropentane
111-44-4

3-oxa-1,5-dichloropentane

1,4-dioxane
123-91-1

1,4-dioxane

Conditions
ConditionsYield
With sodium hydroxide at 200 - 220℃;
With sodium hydroxide; water at 200℃;
With copper(II) oxide
(R)-((R)-2-dichloromethyl-4,5-dihydro-oxazol-4-yl)-(4-nitro-phenyl)-methanol
76738-28-8

(R)-((R)-2-dichloromethyl-4,5-dihydro-oxazol-4-yl)-(4-nitro-phenyl)-methanol

A

1,4-dioxane
123-91-1

1,4-dioxane

B

(1R,2R)-2-amino-3-dichloroacetoxy-1-(4-nitro-phenyl)-propan-1-ol; hydrochloride
119324-39-9

(1R,2R)-2-amino-3-dichloroacetoxy-1-(4-nitro-phenyl)-propan-1-ol; hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; diethyl ether; water
cyclobutanone
1191-95-3

cyclobutanone

C4H9O2(1+)*C2H3N

C4H9O2(1+)*C2H3N

A

1,4-dioxane
123-91-1

1,4-dioxane

B

C4H7O(1+)*C2H3N

C4H7O(1+)*C2H3N

Conditions
ConditionsYield
at 24.9℃; Thermodynamic data; ΔG0;
cyclobutanone
1191-95-3

cyclobutanone

[1,4]Dioxan-1-ium
71815-79-7

[1,4]Dioxan-1-ium

A

1,4-dioxane
123-91-1

1,4-dioxane

B

cyclobutanone; protonated form
64725-63-9

cyclobutanone; protonated form

Conditions
ConditionsYield
at 24.9℃; Thermodynamic data; ΔG0;
1,4-dioxane
123-91-1

1,4-dioxane

dioxane-trichloroborane adduct

dioxane-trichloroborane adduct

Conditions
ConditionsYield
With boron trichloride at -78 - 0℃;100%
1,4-dioxane
123-91-1

1,4-dioxane

nickel
7440-02-0

nickel

1,2-dichloro-benzene
95-50-1

1,2-dichloro-benzene

2,3,5,6-tetrafluoroterephthalaldehyde
3217-47-8

2,3,5,6-tetrafluoroterephthalaldehyde

2,3,5,6-tetrafluoro-1,4-benzenedimethanol
92339-07-6

2,3,5,6-tetrafluoro-1,4-benzenedimethanol

Conditions
ConditionsYield
100%
1,4-dioxane
123-91-1

1,4-dioxane

3-(3-bromo-2-methyl-6-(methylsulfonyl)phenyl)-4,5-dihydroisoxazole
247922-29-8

3-(3-bromo-2-methyl-6-(methylsulfonyl)phenyl)-4,5-dihydroisoxazole

1-methyl-5-hydroxypyrazole
33641-15-5

1-methyl-5-hydroxypyrazole

topramezone
210631-68-8

topramezone

Conditions
ConditionsYield
With carbon monoxide; potassium carbonate; triethylamine; triphenylphosphine; palladium(II) chloride In water100%
With hydrogenchloride; potassium carbonate; triethylamine; bis(triphenylphosphine)palladium(II) dichloride In water
1,4-dioxane
123-91-1

1,4-dioxane

N-methyl-L-leucine
3060-46-6

N-methyl-L-leucine

N-methyl-L-leucine methyl ester
35026-08-5

N-methyl-L-leucine methyl ester

Conditions
ConditionsYield
In hydrogenchloride; methanol100%
1,4-dioxane
123-91-1

1,4-dioxane

methyl 3-(1-adamantyl)-4-vinylbenzoate
135109-96-5

methyl 3-(1-adamantyl)-4-vinylbenzoate

methyl 3-(1-adamantyl)-4-ethylbenzoate
135077-86-0

methyl 3-(1-adamantyl)-4-ethylbenzoate

Conditions
ConditionsYield
palladium on charcoal100%
1,4-dioxane
123-91-1

1,4-dioxane

(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride
72287-26-4, 95464-05-4

(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride

trifluoromethanesulfonic acid 3-(2-cyanothien-3-yl)phenyl ester

trifluoromethanesulfonic acid 3-(2-cyanothien-3-yl)phenyl ester

dichloro[1,1'-bis(diphenylphiosphino)ferrocene]palladium

dichloro[1,1'-bis(diphenylphiosphino)ferrocene]palladium

bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

3-[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)phenyl]thiophene-2-carbonitrile

3-[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)phenyl]thiophene-2-carbonitrile

Conditions
ConditionsYield
With potassium acetate100%
1,4-dioxane
123-91-1

1,4-dioxane

4-(6,7-dimethoxy-4-quinazolinyl)-N-(4-ethoxycarbonylphenyl)-1-piperazinecarboxamide
205255-23-8

4-(6,7-dimethoxy-4-quinazolinyl)-N-(4-ethoxycarbonylphenyl)-1-piperazinecarboxamide

N-(4-Carboxyphenyl)-4-(6,7-dimethoxy-4-quinazolinyl)-1-piperazinecarboxamide

N-(4-Carboxyphenyl)-4-(6,7-dimethoxy-4-quinazolinyl)-1-piperazinecarboxamide

Conditions
ConditionsYield
With lithium hydroxide monohydrate In water100%
1,4-dioxane
123-91-1

1,4-dioxane

isobutylaluminum dichloride
1888-87-5

isobutylaluminum dichloride

isobutyl aluminum dichloride 1,4-dioxane complex

isobutyl aluminum dichloride 1,4-dioxane complex

Conditions
ConditionsYield
slow addn. of Al-compound under Ar to an excess of dioxane at 0°C with stirring; evapn. in vacuo; elem. anal.;100%
1,4-dioxane
123-91-1

1,4-dioxane

(CO)5WC[OB(C4H9)2]CH3(OC4H8)

(CO)5WC[OB(C4H9)2]CH3(OC4H8)

(CO)5WC[OB(C4H9)2]CH3(O2C4H8)

(CO)5WC[OB(C4H9)2]CH3(O2C4H8)

Conditions
ConditionsYield
In pentane at -40°C; evapn., drying at -40.degreeC under high vac. for 20 h, elem. anal.;100%
1,4-dioxane
123-91-1

1,4-dioxane

diisobutylaluminium hydride
1191-15-7

diisobutylaluminium hydride

(2,6-Me2C6H3)N(SiMe3)(Si(OH)3)

(2,6-Me2C6H3)N(SiMe3)(Si(OH)3)

[(2,6-Me2C6H3)N(SiMe3)SiO3Al*dioxane]4

[(2,6-Me2C6H3)N(SiMe3)SiO3Al*dioxane]4

Conditions
ConditionsYield
In 1,4-dioxane; hexane byproducts: H2, i-C4H10; N2-atmosphere; refluxing (6 h); evapn. (vac.), drying (vac., 24 h). recrystn. (hexane / dioxane, 5°C); elem. anal.;100%
1,4-dioxane
123-91-1

1,4-dioxane

diisobutylaluminium hydride
1191-15-7

diisobutylaluminium hydride

(2,4,6-Me3C6H2)N(SiMe3)(Si(OH)3)

(2,4,6-Me3C6H2)N(SiMe3)(Si(OH)3)

[(2,4,6-Me3C6H2)N(SiMe3)SiO3Al*dioxane]4

[(2,4,6-Me3C6H2)N(SiMe3)SiO3Al*dioxane]4

Conditions
ConditionsYield
In 1,4-dioxane; hexane byproducts: H2, i-C4H10; N2-atmosphere; refluxing (6 h); evapn. (vac.), drying (vac., 24 h). recrystn. (hexane / dioxane, 5°C); elem. anal.;100%
1,4-dioxane
123-91-1

1,4-dioxane

isopropylindium dichloride
132280-88-7

isopropylindium dichloride

[((CH3)2CH)InCl2(C4H8O2)]

[((CH3)2CH)InCl2(C4H8O2)]

Conditions
ConditionsYield
In 1,4-dioxane Ar atm.;; layering (n-pentane, -30°C);100%
1,4-dioxane
123-91-1

1,4-dioxane

zinc tetraphenylporphyrin
14074-80-7

zinc tetraphenylporphyrin

Bis(κO-dioxane)-(α,β,γ,δ-tetraphenylporphinato)zinc(II)
1045486-95-0

Bis(κO-dioxane)-(α,β,γ,δ-tetraphenylporphinato)zinc(II)

Conditions
ConditionsYield
at 20℃; for 240h;100%
In 1,4-dioxane Zn complex dissolved in excess of 1,4-dioxane; soln. heated up to boiling temp.; excess of the solvent removed after cooling by flow of air;
1,4-dioxane
123-91-1

1,4-dioxane

(4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanone
1241914-71-5

(4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanone

(R,S)-(4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanol hydrochloride

(R,S)-(4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanol hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In methanol; water; 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran; acetonitrile100%
1,4-dioxane
123-91-1

1,4-dioxane

C4H8O2*O3Se

C4H8O2*O3Se

Conditions
ConditionsYield
With sulfur dioxide; selenium trioxide at 20℃; Schlenk technique; Sealed tube; Inert atmosphere;100%
1,4-dioxane
123-91-1

1,4-dioxane

A

t-butyl 4-({5-[4-(ethoxycarbonyl)-1H-pyrazol-1-yl]-7-methoxy-1H-pyrazolo[4,3-d]pyrimidin-1-yl}methyl)piperidine-1-carboxylate

t-butyl 4-({5-[4-(ethoxycarbonyl)-1H-pyrazol-1-yl]-7-methoxy-1H-pyrazolo[4,3-d]pyrimidin-1-yl}methyl)piperidine-1-carboxylate

B

ethyl 1-[7-methoxy-1-(piperidin-4-ylmethyl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-1H-pyrazole-4-carboxylate hydrochloride

ethyl 1-[7-methoxy-1-(piperidin-4-ylmethyl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-1H-pyrazole-4-carboxylate hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran; ethyl acetateA n/a
B 100%
1,4-dioxane
123-91-1

1,4-dioxane

C39H54GeO6Si2

C39H54GeO6Si2

C27H26GeO6*0.65C4H8O2

C27H26GeO6*0.65C4H8O2

Conditions
ConditionsYield
Stage #1: C39H54GeO6Si2 With tetrabutyl ammonium fluoride In tetrahydrofuran at 0℃; for 0.5h;
Stage #2: 1,4-dioxane
100%
1,4-dioxane
123-91-1

1,4-dioxane

1,3-dimethyluracil
874-14-6

1,3-dimethyluracil

1,3-dimethyl-5-(2,5-dioxanyl)uracil
124851-80-5

1,3-dimethyl-5-(2,5-dioxanyl)uracil

Conditions
ConditionsYield
With dibenzoyl peroxide for 4h; Heating;99%
1,4-dioxane
123-91-1

1,4-dioxane

t-butyl cis-5-(5-hydroxy-3-pyridinyl)hexahydropyrrolo[3,4-c]-pyrrole-2(1H)-carboxylate
370879-71-3

t-butyl cis-5-(5-hydroxy-3-pyridinyl)hexahydropyrrolo[3,4-c]-pyrrole-2(1H)-carboxylate

cis-2-(5-hydroxy-3-pyridinyl)octahydropyrrolo[3,4-c]pyrrole dihydrochloride

cis-2-(5-hydroxy-3-pyridinyl)octahydropyrrolo[3,4-c]pyrrole dihydrochloride

Conditions
ConditionsYield
With hydrogenchloride In methanol; ethyl acetate99%
1,4-dioxane
123-91-1

1,4-dioxane

3-(2-(N-tert-butoxycarbonylamino)ethoxy)-5-phenylisoxazole
195714-54-6

3-(2-(N-tert-butoxycarbonylamino)ethoxy)-5-phenylisoxazole

3-(2-Aminoethoxy)-5-phenylisoxazole hydrochloride
195713-66-7

3-(2-Aminoethoxy)-5-phenylisoxazole hydrochloride

Conditions
ConditionsYield
With hydrogenchloride99%
1,4-dioxane
123-91-1

1,4-dioxane

Pd2 (dba)3

Pd2 (dba)3

4-chloromethoxybenzene
623-12-1

4-chloromethoxybenzene

4,4'-Dimethoxybiphenyl
2132-80-1

4,4'-Dimethoxybiphenyl

Conditions
ConditionsYield
With cesium fluoride In hexane; ethyl acetate99%
1,4-dioxane
123-91-1

1,4-dioxane

(R)-(-)-2-diphenylphosphinyl-2'-trifluoromethanesulfonyloxy-7,7'-dimethyl-1,1'-binaphthyl

(R)-(-)-2-diphenylphosphinyl-2'-trifluoromethanesulfonyloxy-7,7'-dimethyl-1,1'-binaphthyl

(R)-(+)-2-diphenylphosphinyl-2'-hydroxy-7,7'-dimethyl-1,1'-binaphthyl

(R)-(+)-2-diphenylphosphinyl-2'-hydroxy-7,7'-dimethyl-1,1'-binaphthyl

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide In methanol99%
1,4-dioxane
123-91-1

1,4-dioxane

4-chloromethoxybenzene
623-12-1

4-chloromethoxybenzene

4,4'-Dimethoxybiphenyl
2132-80-1

4,4'-Dimethoxybiphenyl

Conditions
ConditionsYield
With cesium fluoride; tris-(dibenzylideneacetone)dipalladium(0) In hexane; ethyl acetate99%
With cesium fluoride; tris-(dibenzylideneacetone)dipalladium(0) In hexane; ethyl acetate99%
1,4-dioxane
123-91-1

1,4-dioxane

nickel dichloride

nickel dichloride

nickel chloride dioxane adduct

nickel chloride dioxane adduct

Conditions
ConditionsYield
With trimethyl orthoformate at 65℃; for 3.5h; Heating / reflux;99%
1,4-dioxane
123-91-1

1,4-dioxane

{tetra-n-butylammonium}{osmiumnitrido(chloro)4}
42531-46-4

{tetra-n-butylammonium}{osmiumnitrido(chloro)4}

tetra-n-butylammonium octachlorodinitrido(1,4-dioxane)diosmate(VI)
136656-57-0

tetra-n-butylammonium octachlorodinitrido(1,4-dioxane)diosmate(VI)

Conditions
ConditionsYield
In acetone addn. of dioxane to soln. of Os-complex, stirring; evapn. to dryness under argon, elem. anal.;99%

1,4-Dioxane Consensus Reports

NTP 10th Report on Carcinogens. IARC Cancer Review: Group 2B IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 , 1987,p. 201.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 11 , 1976,p. 247.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NCI Carcinogenesis Bioassay (oral); Clear Evidence: mouse, rat NCITR*    National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-80 ,1978. . EPA Genetic Toxicology Program. Glycol ether compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

1,4-Dioxane Standards and Recommendations

OSHA PEL: TWA 25 ppm (skin)
ACGIH TLV: TWA 20 ppm (skin); Confirmed Animal Carcinogen with Unknown Revelance to Humans
DFG MAK: 20 ppm (73 mg/m3); Not Classifiable as a Human Carcinogen
NIOSH REL: CL (Dioxane) 1 ppm/30M
DOT Classification:  3; Label: Flammable Liquid

1,4-Dioxane Analytical Methods

For occupational chemical analysis use NIOSH: Dioxane (CAS NO.123-91-1), 1602.

1,4-Dioxane Specification

The CAS registry number of Dioxane is 123-91-1. The IUPAC name is 1,4-dioxane. Its EINECS registry number is 204-661-8. In addition, the molecular formula is C4H8O2 and the molecular weight is 88.11. It is a kind of colourless liquid and belongs to the classes of Pharmaceutical Intermediates; Organics; API Intermediates; Dioxanes; Dioxanes & Dioxolanes; DioxanesCosmetics; Allergens; Alpha Sort; D; DAlphabetic; DIO - DIZEnvironmental Standards.

Physical properties about this chemical are: (1)ACD/LogP: -0.27; (2)ACD/LogD (pH 5.5): -0.27; (3)ACD/LogD (pH 7.4): -0.27; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 16.97; (7)ACD/KOC (pH 7.4): 16.97; (8)#H bond acceptors: 2; (9)Polar Surface Area: 18.46 Å2; (10)Index of Refraction: 1.404; (11)Molar Refractivity: 21.65 cm3; (12)Molar Volume: 88.5 cm3; (13)Polarizability: 8.58 ×10-24cm3; (14)Surface Tension: 31.2 dyne/cm; (15)Density: 0.995 g/cm3; (16)Flash Point: 12.2 °C; (17)Enthalpy of Vaporization: 34.16 kJ/mol; (18)Boiling Point: 102.9 °C at 760 mmHg; (19)Vapour Pressure: 38.2 mmHg at 25°C.

Preparation of Dioxane: it is produced by the acid-catalysed dehydration of diethylene glycol, which in turn arises from the hydrolysis of ethylene oxide. And it can be prepared by ethane-1,2-diol. This reaction will need catalyst Nafion-H. The reaction time is 5 hours at reaction temperature of 135 °C. The yield is about 50%.

Dioxane can be prepared by ethane-1,2-diol

Uses of Dioxane: it is an occasionally used solvent for a variety of practical applications as well as in the laboratory. And it can be used to get [1,4]dioxan-2-one. This reaction will need reagents Me3SiONO2 and CrO3 and solvent acetonitrile. The reaction time is 24 hours at ambient temperature. The yield is about 53%.

Dioxane can be used to get [1,4]dioxan-2-one

When you are using this chemical, please be cautious about it as the following:
It is highly flammable and irritating to eyes, skin and respiratory system. And it has danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed. It may cause cancer, heritable genetic damage and lung damage if swallowed. Avoid exposure - obtain special instruction before use. During using it, wear suitable protective clothing and gloves and avoid contact with skin and eyes. You should not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer). If in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If swallowed, do not induce vomiting, you should seek medical advice immediately and show this container or label. Keep container tightly closed. Keep container in a well-ventilated place. When store it, keep away from sources of ignition-No smoking.

You can still convert the following datas into molecular structure:
(1)SMILES: O1CCOCC1
(2)InChI: InChI=1/C4H8O2/c1-2-6-4-3-5-1/h1-4H2
(3)InChIKey: RYHBNJHYFVUHQT-UHFFFAOYAN

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LCLo inhalation 44gm/m3/7H (44000mg/m3) BEHAVIORAL: EXCITEMENT

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
"Beitrag zur Toxikologischen Wirkung Technischer Losungsmittel, Dissertation," Klimmer, O., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1937Vol. -, Pg. -, 1937.
cat LD50 oral 2gm/kg (2000mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 21, Pg. 173, 1939.
cat LDLo intravenous 1500mg/kg (1500mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: IRRITABILITY
Journal of Hygiene. Vol. 35, Pg. 540, 1935.
guinea pig LD50 oral 3150mg/kg (3150mg/kg) BEHAVIORAL: GENERAL ANESTHETIC

KIDNEY, URETER, AND BLADDER: OTHER CHANGES

GASTROINTESTINAL: OTHER CHANGES
Journal of Industrial Hygiene and Toxicology. Vol. 23, Pg. 259, 1941.
human LCLo inhalation 470ppm/3D (470ppm) BRAIN AND COVERINGS: OTHER DEGENERATIVE CHANGES

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

LIVER: OTHER CHANGES
Pollution Engineering. Vol. 7(9), Pg. 22, 1975.
human TCLo inhalation 470ppm (470ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

VASCULAR: BP ELEVATION NOT CHARACTERIZED IN AUTONOMIC SECTION

GASTROINTESTINAL: OTHER CHANGES
AMA Archives of Industrial Health. Vol. 20, Pg. 445, 1959.
human TCLo inhalation 5500ppm/1M (5500ppm) SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE

SENSE ORGANS AND SPECIAL SENSES: CONJUNCTIVE IRRITATION: EYE

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Public Health Reports. Vol. 45, Pg. 2023, 1930.
mammal (species unspecified) LC50 inhalation 20500mg/m3 (20500mg/m3)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 51(5), Pg. 61, 1986.
mouse LC50 inhalation 37gm/m3/2H (37000mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 63, 1982.
mouse LD50 intraperitoneal 790mg/kg (790mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"
Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 6, Pg. 342, 1947.
mouse LD50 oral 5300mg/kg (5300mg/kg)   Indian Journal of Experimental Biology. Vol. 16, Pg. 54, 1978.
rabbit LD50 oral 2gm/kg (2000mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 21, Pg. 173, 1939.
rabbit LD50 skin 7600uL/kg (7.6mL/kg)   Union Carbide Data Sheet. Vol. 12/17/1971,
rabbit LDLo intravenous 1500mg/kg (1500mg/kg) KIDNEY, URETER, AND BLADDER: URINE VOLUME INCREASED

KIDNEY, URETER, AND BLADDER: URINE VOLUME DECREASED
Journal of Hygiene. Vol. 35, Pg. 540, 1935.
rat LC50 inhalation 46gm/m3/2H (46000mg/m3) SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE Kosmicheskaya Biologiya I Aviakosmicheskaya Meditsina. Space Biology and Aerospace Medicine. Vol. 11(6), Pg. 53, 1977.
rat LD50 intraperitoneal 799mg/kg (799mg/kg)   Environmental Research. Vol. 40, Pg. 411, 1986.
rat LD50 oral 4200mg/kg (4200mg/kg)   Industrial Health. Vol. 32, Pg. 145, 1994.

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