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572543

Woollins′ Reagent

Synonym(s):

2,4-Diphenyl-1,3-diselenadiphosphetane 2,4-diselenide

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About This Item

Empirical Formula (Hill Notation):
C12H10P2Se4
CAS Number:
122039-27-4
Molecular Weight:
532.00
NACRES:
NA.22
PubChem Substance ID:
24880647
UNSPSC Code:
12352005
MDL number:
MFCD04041197
Form:
solid
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form

solid

Quality Segment

reaction suitability

reaction type: Halogenations

mp

206-210 °C (lit.)

storage temp.

2-8°C

SMILES string

[Se]=P1([Se]P(=[Se])([Se]1)c2ccccc2)c3ccccc3

InChI

1S/C12H10P2Se4/c15-13(11-7-3-1-4-8-11)17-14(16,18-13)12-9-5-2-6-10-12/h1-10H

InChI key

GKYFQRQKPYPLGJ-UHFFFAOYSA-N

Application

Reagent involved in reactions with:
  • Benzoic hydrazides to yield spiro heterocycles
  • Secondary amines
  • Aromatic diols to yield 10-membered phosphorus-selenium heterocycles

Reagent involved in ring-opening, deselenation and phosphorus-phosphorus coupling

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

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