Variety of solvents can be employed. Hence the reaction setup must be maintained under a fuming cupboard. Add / Edited: 11.10.2014 / Evaluation of information: 5.0 out of 5 / number of votes: 1. Following rearrangement and loss of water, a second equivalent of water attacks the alpha position. Please register to post comments. In many cases a … Title: SeO2/H2O2/H2O-Dioxane: A New Catalytic System for Trans Dihydroxylation of Olefins VOLUME: 4 ISSUE: 4 Author(s): Pranjal Gogoi, Saikat Das Sharma and Dilip Konwar Affiliation:Organic Chemistry Division, Regional Research Laboratory, Jorhat–785006, Assam, India. The mechanism of oxidation of -CH 2 C(O)R group by SeO2 has been well investigated. SeO 2 + 2NaOH → Na 2 SeO 3 + H 2 O [ Check the balance ] Selenium(IV) oxide react with sodium hydroxide to produce sodium selenite and water. Reaction conditions: * Compounds of selenium are very poisonous and smelly. Become a Patron! The process requires that the cold/cool water be saturated with CO2. Error: equation SeO2+KOH=K2SeO4+H2O is an impossible reaction Please correct your reaction or click on one of the suggestions below: SeO2 + KOH = H2O + K2SeO3 SeO2 + KOH = KO2 + SeOH SeO2 + KOH = H2 + K2SeO4 Instructions and examples below may help to solve this problem You can always ask for help in the forum (when the CO2 returns to a gas, it is endothermic…requires input heat). If you do not know what products are enter reagents only and click 'Balance'. For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but PhC2H5 + O2 = PhOH + CO2 + H2O will; Compound states [like (s) (aq) or (g)] are not required. * SeO 2 is an acidic oxide and dissolves in water to form selenous acid, H 2 SeO 3. Mechanism. SeO 2 in water: a mild and efficient promoter for deprotection of acetyl, methoxymethyl and tetrahydropyranyl ethers and sequel oxidation of methyl/methylene carbons of alpha carbonyl carbon. The oxidation of carbonyl alpha methylene positions begins with attack by the enol tautomer at the electrophilic selenium center. RSC Advances 2015 , 5 (73) , 59114-59119. The solubilities of the systems CeO2-SeO2-H2O and Ce2O3-SeO2-H2O were studied at 100 degreesC. Hey there partner, You get carbonated or fizzy water. ... Сoding to search: SeO2 + 2 NaOH = Na2SeO3 + H2O.