572543

Woollins′ Reagent

• Synonym(s): 2,4-Diphenyl-1,3-diselenadiphosphetane 2,4-diselenide
• Empirical Formula (Hill Notation): C₁₂H₁₀P₂Se₄
• CAS Number: 122039-27-4
• Molecular Weight: 532.00
• MDL number: MFCD04041197
• UNSPSC Code: 12352005
• PubChem Substance ID: 24880647
• NACRES: NA.22

Properties

• form: solid
• Quality Level: 100
• 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

Description

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

Safety Information

• pictograms: GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H301 + H331,H315,H335,H373,H410
• pcodes: P260 - P273 - P301 + P310 - P302 + P352 - P304 + P340 + P311 - P314
• 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_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable