742937

1,4-Diazabicyclo[2.2.2]octane bis(sulfur dioxide) adduct

≥95% (sulfur, elemental analysis)

• Synonym(s): DABCO•(SO₂)₂, DABSO
• Empirical Formula (Hill Notation): C₆H₁₂N₂O₄S₂
• CAS Number: 119752-83-9
• Molecular Weight: 240.30
• MDL number: MFCD22377802
• UNSPSC Code: 12352005
• PubChem Substance ID: 329765601
• NACRES: NA.22

Properties

• Assay: ≥95% (sulfur, elemental analysis)
• form: powder
• composition: active SO₂, ~50% ; carbon, 28.3-31.6%
• storage temp.: 2-8°C
• SMILES string: [O-]S(=O)[N+]12CC[N+](CC1)(CC2)S([O-])=O
• InChI: 1S/C6H12N2O4S2/c9-13(10)7-1-2-8(5-3-7,6-4-7)14(11)12/h1-6H2
• InChI key: RWISEVUOFYXWFO-UHFFFAOYSA-N

Description

Application

1,4-Diazabicyclo[2.2.2]octane bis(sulfur dioxide) (DABSO) is a charge transfer complex that can be used as a sulfur dioxide surrogate:

• In palladium-catalyzed aminosulfonylation process.
• In reaction with aryl bromides to synthesize sodium aryl sulfinates.

It can also be used to activate DMSO and o-vinylanilines for the synthesis of N-aryl-1H-benzo[d]imidazol-1-amine and 4-aryl quinolines, respectively.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H228,H302,H315,H319,H335,H412
• Precautionary Statements: P210 - P273 - P301 + P312 + P330 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Sol. 1 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable