Dibenzyl diselenide 1482-82-2

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Dibenzyl diselenide Basic information

Product Name:	Dibenzyl diselenide
Synonyms:	BENZYL DISELENIDE;DIBENZYL DISELENIDE;1,2-Dibenzyldiselane;Dibenzyldiselenium;Diselenide,bis(phenylmethyl);Dibenzyldiselenide, 99+%;Bis(benzyl) perselenide;Dibenzyl perdiselenide
CAS:	1482-82-2
MF:	C14H14Se2
MW:	340.18
EINECS:
Product Categories:	Pharmaceutical Intermediates;Classes of Metal Compounds;Se (Selenium) Compounds;Semimetal Compounds;Building Blocks;Organic Building Blocks;Selenium Compounds
Mol File:	1482-82-2.mol

Dibenzyl diselenide Chemical Properties

Melting point	91-93 °C(lit.)
Boiling point	427.3±48.0 °C(Predicted)
storage temp.	Inert atmosphere,Room Temperature
solubility	almost transparency in hot Toluene
form	solid
color	Light yellow to Yellow to Orange
Water Solubility	Soluble in water.
Sensitive	Air Sensitive
BRN	1877745
Exposure limits	ACGIH: TWA 0.2 mg/m3 NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
InChI	InChI=1S/C14H14Se2/c1-3-7-13(8-4-1)11-15-16-12-14-9-5-2-6-10-14/h1-10H,11-12H2
InChIKey	HYAVEDMFTNAZQE-UHFFFAOYSA-N
SMILES	[Se](CC1=CC=CC=C1)[Se]CC1=CC=CC=C1
CAS DataBase Reference	1482-82-2(CAS DataBase Reference)
NIST Chemistry Reference	Diselenide, bis(phenylmethyl)(1482-82-2)

Safety Information

Hazard Codes	T,N
Risk Statements	23/25-33-50/53
Safety Statements	20/21-28-45-60-61
RIDADR	UN 3283 6.1/PG 2
WGK Germany	3
HazardClass	6.1
PackingGroup	III
HS Code	29310099

Dibenzyl diselenide Usage And Synthesis

Chemical Properties	Light yellow to Yellow to Orange powder to crystaline.
Uses	Dibenzyl diselenide is used as a source of the PhSe unit in organic synthesis. It is also used to introduce PhSe groups by reaction with a variety of nucleophilic, including enolates, enol silyl ethers, Grignard reagents, organolithium reagents, alkenes and amines.
Preparation	Dibenzyl diselenide was synthesized from bis(methoxymagnesium) diselenide reagent as reported by Gunther using benzyl chloride (6.3 g, 0.05 mole) and a methanolic solution of bis(methoxymagnesium) diselenide reagent (from 0.05 gatom of selenium). After 10 min stirring, water (100 mL) and concentrated hydrochloric acid (5 mL) were added, the solution was cooled, and the black solid was collected by filtration. This black solid was then extracted with ethanol to yield a bright yellow solution which, upon solvent removal, gave a yellow crystalline product. The 1H NMR of the yellow solid (in CDCl3) was identical to that of commercially available dibenzyl diselenide.

Dibenzyl diselenide Preparation Products And Raw materials

Raw materials

Benzyl chloride-->N,N-Dimethylformamide-->Benzaldehyde-->Selenium-->Diethyl ether-->Sodium hydroxide



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