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001648

001648-5g



Cesium fluoride


CAS Number: 13400-13-0
   
Molecular Formula: CsF
   
Molecular Weight: 151.90
   
MDL Number: MFCD00010960

Special Handling and Safety: >30g Air, >1Kg ground requires DOT packaging. $20.00 DOT fee applies.

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001648-5g
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001648-10g
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001648-25g
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001648-100g
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001648-500g
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001648-1Kg
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Purity:99%
Mp:682°
Density:4.115
 
Pictograms:
Signal Word:Danger
Hazard Statements:H301, H311, H314, H318, H331, H361
Precautionary Statements:P261, P280, P301 + P310, P302 + P352, P304 + P340, P305 + P351 + P338, P308 + P313, P310
UN#:UN2923
Packing Group:II
Hazard Class:8
, 6.1

RTECS:FK9650000
SDS: See MSDS
 
Limited Quantities:1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid)
Excepted Quantities:Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

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A useful base applied in  the Suzuki carbonylative coupling of enol triflates with vinyl boronic acids,and in Knoevenagel condensation reactions to give higher yields than KF or NaF.Less hygroscopic alternative to tetra-n-butylammonium fluoride (TBAF) and TAS-fluoride (TASF) when anhydrous "naked" fluoride ion is needed. A popular source of fluoride used in conversion of electron-deficient aryl chlorides to aryl fluorides.3 Useful for desilylation reactions 2 and for the removal of silyl protecting groups.4 Employed in the successful synthesis of a single-crystal Dion-Jacobson phase, CsLaTa2O7, that has applications in photocatalysis and superconductivity.5 As a catalyst in the synthesis of flavones and their derivatives from esters of 2-hydroxyacetophenones and in the synthesis of tobacco alkaloids from aromatic amides,6 and in the addition of trimethylsilylcyanide to ketones.7 Used in synthesis of macrocyclic polyethers with aromatic subunits.8 Also applied to promote halogenation of cyanogen by chlorine and bromine,9 and promote Stille coupling reaction.10
References
1.        Eur. J. Org. Chem. 2007, 2152.
2.        Tetrahedron Lett. 198526, 787.
3.        J. Org. Chem. 196833,1837.
4.        Org. Synth. 200278, 82.
5.        Chem. Abstr. 1998129, 224819u.
6.        React.Kinet.Catal.Lett. 200172, 3.
7.        J. Org. Chem. 2004689, 1734.
8.        J. Heterocycl. Chem. 198522, 1297.
9.        Inorg. Chem. 199130, 535.
10.        Chem. Commun. 2008, 6330.

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