Cesium trifluoroacetate

Other Cesium Compounds. Cesium acetate [3396-11-0], CsOOCCH, mol wt 191.95, theoretical cesium content 69.24 wt % cesium trifluoroacetate, CF COOCs, mol wt 245.93, theoretical cesium content 54.04 wt % cesium—precious metal compounds such as cesium dicarbonyltetrachloromthenium, [22594-81-6] Cs2RuCl4(CO)2, mol wt 564.71, mthenium content of 17.9 wt %, a yellow crystalline powder and cesium tetrachlorogold [13682-60-5], CsAuCl, mol wt 471.7, gold content of 41.8 wt % a yellow powder are all known. 

Cesium superoxide, 5 700 Cesium tetrachlorogold, 5 701 Cesium tetrahydroborate, physical properties of, 4 194t Cesium trifluoroacetate, 5 701 Cesium vapor thermionic convertor, 5 704-705 Cesspools, 25 915... 

Cesium niobium iodide complexes, 46 34 Cesium pseudohalide complexes, 46 42 Cesium salt (CS2MCy, lattice energy, 22 22 Cesium tetraiodide, structure of, 3 152 Cesium trifluoroacetates, 17 8, 31, 32 CF, 33 110... 

An alternative solid-phase synthesis of peptide thioamides that uses methyl dithioesters to introduce the sulfur involves addition of DMAP and cesium trifluoroacetate. 24 These additives greatly accelerate the thioamide-forming reaction and give low levels of racemi-zation according to Marfey s test analysis 25 of an Alaip[C(=S)—NH]Val product. 

Recently, extractions using cesium trifluoroacetate (CsTFA) have been recommanded. This salt is expensive but is more effective than CsCl in deproteinization and inhibition of RNases. RNA can be pelleted or banded by adjustement of the density. CsTFA is far from essential to purify total RNA for sequencing. 

Performance of lithium-ion batteries at low temperature is an important factor, since it is necessary for application in aerospace technology. A solution of cesium trifluoroacetate in N,N-dimethylacetamide can replace linear... 

Aminomethylated polystyrene (DVB I %, 1.07 mmol Trifluoroacetic acid / dichloromethane (I/I, v/v), 10mL 3-Bromopropionic acid (97 %) (158 mg, I mmol) Cesium carbonate (99.9%) (652 mg, 2 mmol) Triethylamine Benzene Acetone... 

All manipulations were carried out in Kel-F, Teflon FEP, or fused silica reaction vessels attached to a stainless steel or Monel fluorine-type vacuum system and/or in a Vacuum Atmospheres inert atmosphere Dri lab. Hexafluorobenzme, oclafluorotoluene, octafluoronaphthalene (PCR Inc., Gainesville, FL), sulfur dioxide, anhydrous hydrogen fluoride (Matheson, E. Rutherford, NJ), cesium fluoride (ROC/RIC, Sun Valley, CA), trifluoroacetic acid (Aldrich, Milwaukee, Wl), and tungsten hexafluoride, arsenic pentafluoride, and antimony pentafluoride (Ozark-Mahoning, Inc., Tulsa, OK) were used as received after their purity was checked by infrared spectroscopy. Dioxygenyl salts and rhenium and... 

N-Alkoxymethyl(trimethylsilyImethyl)amines are convenient precursors for C-unsubstituted azomethine ylides 43 since the N-alkoxymethyl(trimeth-ylsilylmethyl)amines are readily available by the reaction of N-alkylated silylmethylamines with formaldehyde in alcohol solvents (84CL1117). Treatment of the amines with trimethylsilyl triflate in acetonitrile or tetrahy-drofuran brings about the elimination of alkoxy group R O to form N-silylmethyliminium trifiates 42. The subsequent desilylation with cesium fluoride generates C-unsubstituted azomethine ylides 43 (84CL1117). Both steps of the alkoxy elimination and subsequent desilylation of 42 are induced by trifluoroacetic acid (85CPB896, 85CPB2762), tetrabutylammonium... 

Related Reagents. Phenylsilane-Cesium Ruoride Tri-n-butylstannane Tricarbonylchloroiridium-Diethyl(methyl) Silane-Carbon Monoxide Triethylsilane-Trifluoroacetic Acid. 

The SttzM -coupling partner 778 was synthesized with phloroglucinic acid 777 as starting material in four steps, consistent with a published procedure 498,508), followed by a Suzuki reaction (502, 509, 510) on the iodinated enone 776 using palladium(II) acetate, cesium carbonate, and S-Phos (2-dicyclohexylphosphanyl-2, 6 -dimethoxybiphenyl) (Scheme 11.9). Fortunately, lactone 779 was directly achieved under these conditions, so there was only a deprotection step with trifluoroacetic acid remaining to prepare neoaltenuene (736) in an overall yield of 10% in 14 steps. 

---