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Sodium periodate is an inorganic salt, composed of a sodium cation and the periodate anion.It may also be regarded as the sodium salt of periodic acid.Like many periodates, it can exist in two different forms: sodium metaperiodate (formula NaIO 4) and sodium orthoperiodate (normally Na 2 H 3 IO 6, but sometimes the fully reacted salt Na 5 IO 6).
Classically, periodate was most commonly produced in the form of sodium hydrogen periodate (Na 3 H 2 IO 6). [2] This is commercially available, but can also be produced by the oxidation of iodates with chlorine and sodium hydroxide. [3] Or, similarly, from iodides by oxidation with bromine and sodium hydroxide:
The development of the Lemieux–Johnson oxidation was preceded by an analogous process, developed by Lemieux and Ernst Von Rudloff (sometimes called the Lemieux-Von Rudloff reaction), which used an aqueous solution of sodium periodate with a low (catalytic) concentration of potassium permanganate. [7]
Ruthenium tetroxide is the inorganic compound with the formula RuO 4.It is a yellow volatile solid that melts near room temperature. [3] It has the odor of ozone. [4] Samples are typically black due to impurities.
Pages in category "Sodium compounds" The following 182 pages are in this category, out of 182 total. ... Sodium periodate; Sodium permanganate; Sodium peroxide ...
The first periodatonickalates discovered were sodium nickel periodate (NaNiIO 6 ·0.5H 2 O) and potassium nickel periodate (KNiIO 6 ·0.5H 2 O). P. Ray and B. Sarma obtained these dark purple double salts in 1949, mixing nickel sulfate with potassium or sodium periodate and (as oxidant) a boiling aqueous solution of an alkali persulfate ...
In the laboratory, vicinal diols suffer oxidative breakage at a carbon-carbon bond with some oxidants such as sodium periodate (NaIO 4), (diacetoxyiodo)benzene (PhI(OAc) 2) [9] or lead tetraacetate (Pb(OAc) 4), resulting in generation of two carbonyl groups. The reaction is also known as glycol cleavage.
In combination with sodium periodate, OsO 4 is used for the oxidative cleavage of alkenes (Lemieux-Johnson oxidation) when the periodate serves both to cleave the diol formed by dihydroxylation, and to reoxidize the OsO 3 back to OsO 4. The net transformation is identical to that produced by ozonolysis. Below an example from the total synthesis ...