• Name

  DIETHYL SELENIDE

• EINECS
• CAS No. 627-53-2
• Article Data31
• CAS DataBase
• Density 1.232 g/mL at 25 °C(lit.)
• Solubility
• Melting Point 55°C
• Formula C4H10 Se
• Boiling Point 108 °C(lit.)
• Molecular Weight 137.083
• Flash Point 72 °F
• Transport Information
• Appearance
• Safety Low toxicity by inhalation. When heated to decomposition it emits toxic vapors of Se.
• Risk Codes R10; R23/25; R33; R50/53
• Molecular Structure
• Hazard Symbols T,N
• Synonyms Ethylselenide (6CI,7CI,8CI); Diethyl selenide; Diethyl selenium; Diethylmonoselenide
• PSA 0.00000
• LogP 1.56700

Synthetic route

75-03-6

ethyl iodide

627-53-2

diethylselenium

Conditions

Conditions	Yield
With potassium hydroxide; selenium; hydrazine hydrate at 40 - 50℃;	99%

17696-75-2

diethyl selenoxide

627-53-2

diethylselenium

Conditions

Conditions	Yield
With hexamethyldisilathiane In dichloromethane at 40℃; for 2h;	97%

74-96-4

ethyl bromide

627-53-2

diethylselenium

Conditions

Conditions	Yield
With potassium hydroxide; selenium; hydrazine hydrate at 35 - 40℃;	83%
With piazselenole; magnesium 1.) diethyl ether, 2.) diethyl ether, reflux, 15 min; Yield given. Multistep reaction;

74-96-4

ethyl bromide

A

627-53-2

diethylselenium

B

57796-75-5

divinyl selenide

C

87925-91-5

vinyl ethyl selenide

Conditions

Conditions	Yield
With potassium hydroxide; red selenium; water; tin(ll) chloride; acetylene at 105 - 115℃; under 9120 Torr; for 5h;	A 4% B 21% C 44%

...Expand

74-96-4

ethyl bromide

74-86-2

acetylene

A

627-53-2

diethylselenium

B

57796-75-5

divinyl selenide

C

87925-91-5

vinyl ethyl selenide

Conditions

Conditions	Yield
With potassium hydroxide; red selenium; water; tin(ll) chloride at 105 - 115℃; under 9120 Torr; for 5h;	A 4% B 21% C 44%

...Expand

74-86-2

acetylene

A

627-53-2

diethylselenium

B

57796-75-5

divinyl selenide

C

87925-91-5

vinyl ethyl selenide

Conditions

Conditions	Yield
With potassium hydroxide; red selenium; water; ethidium Bromide; tin(ll) chloride at 105 - 115℃; under 9120 Torr; for 5h;	A 4% B 21% C 44%

...Expand

74-85-1

ethene

A

627-53-2

diethylselenium

B

593-69-1

ethaneselenol

Conditions

Conditions	Yield
With molybdenum (IV) sulfide; selen(o) hydrogen at 220℃;

593-69-1

ethaneselenol

141-52-6

sodium ethanolate

A

627-53-2

diethylselenium

B

873964-28-4

triselenoorthoformic acid triethyl ester

Conditions

Conditions	Yield
folgendes Behandeln mit CCl4;

...Expand

627-44-1

diethylmercury

627-53-2

diethylselenium

Conditions

Conditions	Yield
With selenium(IV) oxide at 50℃;

627-44-1

diethylmercury

A

627-53-2

diethylselenium

B

ethylmercury (1+); selenite

Conditions

Conditions	Yield
With selenium(IV) oxide

563-17-7

potassium ethyl sulfate

627-53-2

diethylselenium

Conditions

Conditions	Yield
With potassium hydroxide; phosphorus selenide

36996-91-5

4-ethylselanyl-but-1-en-3-yne

2399-72-6

diethylcalcium

A

689-97-4

3-buten-1-yne

B

627-53-2

diethylselenium

Conditions

Conditions	Yield
With water

...Expand

36996-91-5

4-ethylselanyl-but-1-en-3-yne

2399-59-9

diethylstrontium

A

689-97-4

3-buten-1-yne

B

627-53-2

diethylselenium

Conditions

Conditions	Yield
With water

...Expand

60-29-7

diethyl ether

aluminium selenide

aluminium selenide

A

628-39-7

diethyl diselenide

B

627-53-2

diethylselenium

Conditions

Conditions	Yield
at 300 - 350℃;

...Expand

7446-08-4

selenium(IV) oxide

627-44-1

diethylmercury

A

627-53-2

diethylselenium

B

bis-ethylmercury-selenite

bis-ethylmercury-selenite

Conditions

Conditions	Yield
at 50℃;

...Expand

74-96-4

ethyl bromide

A

110-81-6

Diethyl disulfide

B

352-93-2

diethyl sulphide

C

627-53-2

diethylselenium

D

88890-93-1

ethyl ethylselenosulfenate

Conditions

Conditions	Yield
With sodium hydroxide; selenium; sulfur; hydrazine hydrate In water at 52 - 56℃; Product distribution; Further Variations:; Reagents;

...Expand

74-96-4

ethyl bromide

A

110-81-6

Diethyl disulfide

B

628-39-7

diethyl diselenide

C

352-93-2

diethyl sulphide

D

627-53-2

diethylselenium

Conditions

Conditions	Yield
With sodium hydroxide; selenium; sulfur; hydrazine hydrate In water at 35℃; Product distribution; Further Variations:; Reagents;	A 29.7 % Chromat. B 36.2 % Chromat. C 2.2 % Chromat. D 5.5 % Chromat.

...Expand

74-96-4

ethyl bromide

A

110-81-6

Diethyl disulfide

B

628-39-7

diethyl diselenide

C

627-53-2

diethylselenium

D

88890-93-1

ethyl ethylselenosulfenate

Conditions

Conditions	Yield
With sodium hydroxide; selenium; sulfur; hydrazine hydrate In water at 35℃; Further byproducts given;	A 29.7 % Chromat. B 36.2 % Chromat. C 5.5 % Chromat. D 25.9 % Chromat.

...Expand

802294-64-0

propionic acid

627-53-2

diethylselenium

Conditions

Conditions	Yield
With sodium selenite; sodium selenate In water UV-irradiation;

7446-08-4

selenium(IV) oxide

A

7782-49-2

selenium

B

627-53-2

diethylselenium

Conditions

Conditions	Yield
With ethanol; phosphan In ethanol
With ethanol In ethanol at 150°C in an autoclave;;
With PH3; ethanol In ethanol
With ethanol In ethanol at 150°C in an autoclave;;

627-53-2

diethylselenium

74-86-2

acetylene

288-05-1

selenophene

Conditions

Conditions	Yield
at 460℃;	100%
In methanol at 440℃; for 1.28333h;	89.5%
With Diethyl disulfide at 510℃;
With methanol thermolysis;
With methanol Thermolysis;

627-53-2

diethylselenium

7550-45-0

titanium tetrachloride

201152-09-2

TiCl4(Se(C2H5)2)2

Conditions

Conditions	Yield
In hexane Ar-atmosphere; stoich. amts.; removal of volatiles, sublimation; elem. anal.;	96%

627-53-2

diethylselenium

262273-58-5

(N,N'-bis(2-phenylethyl)-2,6-pyridinedicarboxamidato)(η1-acetonitrile)palladium(II)

876289-15-5

[N,N'-bis(2-phenylethyl)-2,6-pyridinedicarboxamidato](diethylselenide)palladium(II)

Conditions

Conditions	Yield
In dichloromethane (N2); dissolving of Pd(NCMe)(C5H3N(CONCH2CH2Ph)2) in CH2Cl2; addn. of SeEt2; stirring overnight; addn. of heptane, filtration of suspn., washing with heptane, drying in vac., elem. anal.;	81%
In chloroform-d1 (N2); dissolving of Pd(NCMe)(C5H3N(CONCH2CH2Ph)2) in CDCl3; addn. of SeEt2; monitoring by NMR;

627-53-2

diethylselenium

1578268-90-2

N-tosyl-2-vinylbenzamide

(Z)-N-(3-((ethylselanyl)methyl)isobenzofuran-1(3H)-ylidene)-4-methylbenzenesulfonamide

Conditions

Conditions	Yield
With lithium perchlorate In acetonitrile at 20℃; for 0.0166667h; Electrochemical reaction; Green chemistry;	78%

13986-26-0

zirconium(IV) iodide

627-53-2

diethylselenium

959963-97-4

[ZrI4(SeEt2)2]

Conditions

Conditions	Yield
In dichloromethane under N2 atm. to suspn. ZrI4 in CH2Cl2 Et2Se was added and stirred for 24 h; soln. was filtered and evapd. in vacuo, residue was washed with hexane and dried in vacuo; elem. anal.;	31%

627-53-2

diethylselenium

10026-11-6

zirconium(IV) chloride

959963-96-3

[ZrCl4(SeEt2)2]

Conditions

Conditions	Yield
In dichloromethane under N2 atm. to suspn. ZrCl4 in CH2Cl2 Et2Se was added and stirred for 96 h; ppt. was dried in vacuo; elem. anal.;	30%

13777-23-6

hafnium(IV) iodide

627-53-2

diethylselenium

959963-98-5

[HfI4(SeEt2)2]

Conditions

Conditions	Yield
In toluene under N2 atm. to suspn. HfI4 in toluene Et2Se was added and stirred for 24 h; ppt. was filtered and dried in vacuo; elem. anal.;	21%

627-53-2

diethylselenium

100-52-7

benzaldehyde

A

92-52-4

biphenyl

B

17774-38-8

ethyl phenyl selenide

C

1132-39-4

diphenylselenide

D

1666-13-3

diphenyl diselenide

Conditions

Conditions	Yield
In gas at 500℃;	A 14% B 9% C 19% D 8%

...Expand

627-53-2

diethylselenium

17697-07-3

Diethylselenium dibromide

Conditions

Conditions	Yield
With tetrachloromethane; bromine

627-53-2

diethylselenium

79-08-3

bromoacetic acid

diethyl-carboxymethyl-selenonium; hydroxide

Conditions

Conditions	Yield
und man zerlegt das Bromid durch Silberoxyd;

Diethyl selenide Chemical Properties

Diethyl selenide Toxicity Data With Reference

Diethyl selenide Safety Profile

Diethyl selenide Standards and Recommendations

Diethyl selenide Specification