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Merck
CN

347116

Samarium(II) iodide solution

0.1 M in THF, contains samarium chips as stabilizer

Synonym(s):

Samarium diiodide

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About This Item

Linear Formula:
SmI2
CAS Number:
Molecular Weight:
404.17
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
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form

liquid

Quality Level

contains

samarium chips as stabilizer

reaction suitability

core: samarium, reagent type: catalyst
reaction type: Reductions, reagent type: reductant

concentration

0.1 M in THF

density

0.922 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

I[Sm]I

InChI

1S/2HI.Sm/h2*1H;/q;;+2/p-2

InChI key

UAWABSHMGXMCRK-UHFFFAOYSA-L

Application

Samarium(II) iodide solution (SmI2) can be used as a reagent in the synthesis of:
  • Benzannulated pyrrolizidines and indolizidines by SmI2-induced cyclizations of indole derivatives.
  • Chiral 4-substituted 2-oxazolidinones and 5,5-disubstituted oxazolidinones through asymmetric Reformatsky type reaction.
  • γ-Aminoalkyl substituted γ-butyrolactones via ketyl-alkene coupling reaction.

It can also be used in:
  • Reduction of conjugated double and triple bonds into alkenes using SmI2/H2O/amine mixtures.
  • Conversion of β-hydroxyketones into 1,3-diols by SmI2/H2O/Et3N.
  • Selective reduction of 6-membered lactones to the corresponding diols/triols using SmI2-H2O reagent system.

SmI2 is an effective single-electron reducing agent for the promotion of ketone-olefin, ketyl aryl cyclizations, and pinacol coupling reactions under mild conditions. Often both intramolecular and intermolecular couplings proceed in a highly stereoselective fashion. It is also used in the synthesis of new heteroleptic samarium aryloxide/cyclopentadienide complexes.

Packaging

The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC


signalword

Danger

target_organs

Central nervous system, Respiratory system

supp_hazards

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

flash_point_f

-2.2 °F - closed cup - Solvent

flash_point_c

-19 °C - closed cup - Solvent

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Classifications

Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3 - Water-react. 3

Regulatory Information

危险化学品

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Articles

Rare earth elements are vital in everyday life worldwide: catalysts in cars, colors in screens, magnets in electronics. Essential for modern living.


Application of lanthanide reagents in organic synthesis
Gary A. Molander
Chemical Reviews, 92, 29-29 (1992)
Aldrichimica Acta, 24, 15-15 (1991)
Synthesis of Substituted Cyclooctanols by a Samarium(II) Iodide Promoted 8-Endo Radical Cyclization Process
Gary A. Molander and Jeffrey A. McKie
The Journal of Organic Chemistry, 59, 3186-3186 (1994)



Global Trade Item Number

SKUGTIN
347116-1L04061826761533
347116-4X25ML04061826761557
347116-PZ04061834279242
347116-100ML04061826761519
347116-25ML04061826761540