Lithium dihydrated

An example of p-nitrosophenolate anion is very spectacular indeed. In various salts this anion is differently hydrated and this is a cause of variation of the ring geometry and consequently of the energy content of the ring. Figure 6 shows the relevant data for p-nitrosophenolates of sodium (trihydrate) [29], magnesium (hexahydrate) [30], and lithium (dihydrate) [31]. 

Lithium Acetate. Lithium acetate [546-89 ] is obtained from reaction of lithium carbonate or lithium hydroxide and acetic acid. Crystalline lithium acetate dihydrate [6108-1 7a(/, CH2C02Li 2H20, melts congmentiy in its own water of crystallization at 57.8°C. The anhydrous salt [646-89-4] melts... 

Lithium Iodide. Lithium iodide [10377-51 -2/, Lil, is the most difficult lithium halide to prepare and has few appHcations. Aqueous solutions of the salt can be prepared by carehil neutralization of hydroiodic acid with lithium carbonate or lithium hydroxide. Concentration of the aqueous solution leads successively to the trihydrate [7790-22-9] dihydrate [17023-25-5] and monohydrate [17023-24 ] which melt congmendy at 75, 79, and 130°C, respectively. The anhydrous salt can be obtained by carehil removal of water under vacuum, but because of the strong tendency to oxidize and eliminate iodine which occurs on heating the salt ia air, it is often prepared from reactions of lithium metal or lithium hydride with iodine ia organic solvents. The salt is extremely soluble ia water (62.6 wt % at 25°C) (59) and the solutions have extremely low vapor pressures (60). Lithium iodide is used as an electrolyte ia selected lithium battery appHcations, where it is formed in situ from reaction of lithium metal with iodine. It can also be a component of low melting molten salts and as a catalyst ia aldol condensations. 

The octahydrate is the stable soHd phase ia contact with its solution below 36.9°C. Above this temperature lithium metaborate dihydrate,... 

Metal halide salts other than sodium iodide have been used sparsely to prepare halodeoxy sugars from sulfonate esters. Lithium chloride (107) and lithium bromide (33) have found limited application. Potassium fluoride (dihydrate) in absolute methanol has been used (51, 52) to introduce fluorine atoms in terminal positions of various D-glucose derivatives. The reaction is conducted in sealed tube systems and requires... 

By using three mole equivalents of lithium iodide dihydrate, at the end of 6.5 hours of reflux a 77% yield of 2-benzylcyclopentanone is obtained. 

The reduction of different aliphatic or aromatic aldehydes or ketones 15 was easily achieved using the combination of dihydrated nickel(II) chloride, lithium and a catalytic amount of naphthalene (16%) or DTBB (8%) in THF, yielding the corresponding alcohols without (534) or with (535) deuterium labelling in 57-86% yield. For imines 536, the same process afforded the corresponding amines 537 or deuterio amines 538 in 54- >95% yield . 

Lithium thiocyanate (lithium rhodanide) [556-65-0] M 65.0. It crystallises from H2O as the dihydrate but on drying at 38-42° it gives the monohydrate. It can be purified by allowing an aqueous soln to crystallise in a vac over P2O5. The crystals are collected, dried out in vacuum at 80°/P2O5 in a stream of pure N2 at 110°. [7C5 1245 1936]. 

LITHIUMAND LITHIUM COMPOUNDS] (Vol 15) Lithium acetate dihydrate [6108-17-4]... 

As unidentate ligands, carboxylates are expected to (i) lose the equivalence of the two carbon- oxygen bonds found in the anion and (ii) have one metal-oxygen distance considerably shorter than the next shortest M—O contact. Lithium acetate dihydrate exemplifies this14 with C—O distances of 133 and 122 pm and Li—O distances of 227 and 257 pm. Most examples of unidentate carboxylate complexes have this classical configuration of M(0—C) and C=0 respectively so certainly the presence of features (i) and (ii) unambiguously determine this mode of coordination. 

A. cis-1-Acetoxy-4-chloro-2-cyclohexene. A 1-L, one-necked, round-bottomed flask equipped with a magnetic stirring bar is charged with 200 mL of acetic acid, 5.1 g (0.12 mol) of lithium chloride, 12.2 g (0.12 mol) of lithium acetate dihydrate, 0.67 g (3 mmol) of palladium acetate, and 12.9 g (0.12 moi) of p-benzoquinone. The contents of the flask are stirred at room temperature until all components are dissolved, and 300 mL of pentane is added. To the pentane phase of the biphasic system formed is added 4.82 g (60 mmol) of 1,3-cyclohexadiene (Note 1). The reaction mixture is stirred at a moderate rate (Note 2) at room temperature and after 4 hr, 2.87 g (33 mmol) of manganese dioxide (Note 3) is added. After the flask is stirred for another 4... 

Lithium acetate dihydrate Acetic acid, lithium salt, dihydrate (8,9) (6108-17-4) Palladium acetate Acetic acid, palladium(2+) salt (8,0) (3375-31-3) p-Benzoquinone (8) 2,5-Cyclohexadiene-1,4-dione (9) (106-51-4) 1,3-Cyclohexadiene (8,9) (592-57-4)... 

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