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

ALDRICH/742937 - ≥95% (sulfur, elemental analysis)

Synonym: DABCO•(SO₂)₂; DABSO

CAS Number: 119752-83-9
Empirical Formula (Hill Notation): C₆H₁₂N₂O₄S₂
Molecular Weight: 240.30
MDL Number: MFCD22377802
Linear Formula: C₆H₁₂N₂O₄S₂
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-742937-1G	1 g	$78.40 1/EA	Add To Favorites
45-742937-5G	5 g	$230.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

assay	≥95% (sulfur, elemental analysis)
composition	active SO₂, ~50%
	carbon, 28.3-31.6%
form	powder
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
Quality Level	100
SMILES string	[O-]S(=O)[N+]12CC[N+](CC1)(CC2)S([O-])=O
storage temp.	2-8°C

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.

Symbol	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 Codes	F,Xn
Risk Statements	11-22-36/37/38-52/53
Safety Statements	26-60
RIDADR	UN1325 - class 4.1 - PG 2 - Flammable solids, organic, n.o.s., H
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥95% (sulfur, elemental analysis)
Storage Temp.	2-8°C
UNSPSC	12352005

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