AAA Molybdenum Products

AAA Molybdenum Products Advance Research Chemicals Alquimia Mexicana (Mexico)... 

Calcium molybdate Calcium molybdate(Vl) Calcium molybdenum oxide (CaMo04) EINECS 232-192-9 Molybdate (Mo042-), calcium (1 1) Molybdate, calcium Molybdic xid (H2M0O4), calcium salt (1 1). Alloying agent in production of iron and steel, crystals in optical and eixtronic applications, phosphors. Soiid d = 4.360 insoluble in H2O, alcohols, soluble in concentrated mineral xids. AAA Molybdenum Atomergic Chemetals Cerac Noah Chem. 

CCRIS 3682 Disodium molybdate dihydrate Molybdic acid, disodium salt, dihydrate Molyhibit 100 Sodium molybdate Sodium molybdate dihydrate Sodium molybdate(VI) dihydrate Anhydrous sodium molybdate [77631-95-0]. Reagent in analytical chemistry, used in manufacture of paint pigment, corrosion inhibitor, catalyst in dye and pigment production, additive for fertilizers and feeds, micronutrient. Crystalline powder dec 100° soluble in H2O (60 g/100 ml). AAA Molybdenum Cerac Climax Molybdenum Co. Mallinckrodt Ino. PMC. 

One good example of the application of this technology is in the AAA reaction of a racemic vinyl epoxide. The epoxide undergoes a dynamic kinetic asymmetric transformation (DYKAT) by reaction with p-methoxybenzyl alcohol, the standard ligand, and a palladium source. The product is obtained in 69% yield and 98% e.e. After further manipulations a key building block for the nonpeptidic protease inhibitor tipranavir was produced. Coupling of this intermediate with a synthon obtained using a molybdenum-catalyzed DYKAT process led to an advanced intermediate in a total synthesis of tipranavir (Scheme 20.14). ... 

Progress has also been made in the use of other metals. For example, iridium-catalyzed processes have been developed for AAA reactions. The regioselectivity of this reaction is analogous to molybdenum. Allylation of soft carbon nucleophiles has been reported using chiral iridium complexes, with the products isolated in high enantiomeric purity (> 91%... 

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