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Sigma-Aldrich

9-Azabicyclo[3.3.1]nonane N-oxyl

greener alternative

95%

Synonym(s):

9-Azabicyclo[3.3.1]nonane N-oxyl radical, ABNO

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About This Item

Empirical Formula (Hill Notation):
C8H14NO
CAS Number:
31785-68-9
Molecular Weight:
140.20
Beilstein:
1681761
UNSPSC Code:
12161600
PubChem Substance ID:
329767041
NACRES:
NA.22

Assay

95%

form

solid

reaction suitability

reagent type: ligand

greener alternative product characteristics

Catalysis
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sustainability

Greener Alternative Product

mp

65-70 °C

greener alternative category

, Aligned

storage temp.

2-8°C

SMILES string

C[C@@]12CCC[C@@](C)(CCC1)N2[O]

InChI

1S/C10H18NO/c1-9-5-3-7-10(2,11(9)12)8-4-6-9/h3-8H2,1-2H3/t9-,10+

InChI key

GGWCZKZSILYISB-AOOOYVTPSA-N

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General description

9-Azabicyclo[3.3.1]nonane N-oxyl (ABNO) belongs to a sterically unhindered and stable class of nitroxyl radicals. It efficiently catalyzes the oxidation of alcohols to afford the corresponding carbonyl compounds. ABNO along with (MeObpy)CuI(OTf) (MeObpy =4,4′-dimethoxy-2,2′-bipyridine) comprises a catalytic system. This catalytic system is useful for the aerobic oxidation of all categories of alcohols.
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Application

9-Azabicyclo[3.3.1]nonane N-oxyl (ABNO) may be employed for the aerobic oxidation of alcohols.
Catalytic oxidant for copper-catalyzed greener oxidation of alcohols under aerobic conditions.

Copper(I)/ABNO-Catalyzed Aerobic Alcohol Oxidation: Alleviating Steric and Electronic Constraints of Cu/TEMPO Catalyst Systems

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Masatoshi Shibuya et al.
The Journal of organic chemistry, 74(12), 4619-4622 (2009-05-30)
A practical, three-step synthetic route to 9-azabicyclo[3.3.1]nonane N-oxyl (ABNO, 3), an unhindered, stable class of nitroxyl radical, has been developed. ABNO exhibits a highly active nature compared with TEMPO in the catalytic oxidation of alcohols to their corresponding carbonyl compounds.
Practical Aerobic Alcohol Oxidation with Cu/Nitroxyl and Nitroxyl/NOx Catalyst Systems.
Miles KC and Stahl SS.
Aldrichimica Acta, 48(1), 8-8 (2015)
Janelle E Steves et al.
Journal of the American Chemical Society, 135(42), 15742-15745 (2013-10-17)
Cu/TEMPO catalyst systems promote efficient aerobic oxidation of sterically unhindered primary alcohols and electronically activated substrates, but they show reduced reactivity with aliphatic and secondary alcohols. Here, we report a catalyst system, consisting of ((MeO)bpy)Cu(I)(OTf) and ABNO ((MeO)bpy = 4,4'-dimethoxy-2,2'-bipyridine;

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