1,8-Diacetylnaphthalene and 3-Methylphenalenone

Abstract

not available

Oxidative Cleavage of vic-Diols to Aldehydes with Dioxygen Catalyzed by Ru(PPh3)3Cl2 on Active Carbon

“…Typically, two oxidants, lead tetraacetate and periodic acid, are used for this purpose. On occasion, other reagents such as ceric ammonium nitrate, sodium bismuthate, and CrO 3 cause the cleavage of vicinal diols. However, these reagents have the obvious drawbacks of being toxic and producing a large amount of waste.…”

New insights into the bifunctionality of vanadium phosphorous oxides: A chemical switch between oxidative scission and pinacol rearrangement of vicinal diols

“…Conventionally, this reaction has been carried out with high-valent inorganic oxidants; periodic acid and lead tetra acetate being the most common reagents [17,18]. In addition, the cleavage has also been studied with ceric ammonium nitrate, manganese dioxide, chromium trioxide, sodium bismuthate, NaIO 4 -SiO 2 , copper (II) bromide-lithium-tbutoxide [19][20][21][22][23]. However, such inorganic oxidants are required in high stoichiometric ratios and generate large volumes of inorganic by-products.…”

A selective, efficient and environmentally friendly method for the oxidative cleavage of glycols

“…In addition, sodium periodate is not effective in nonpolar solvents due to its insolubility, and it is also able to oxidize other functional groups such as alcohols, alkenes, aromatics, sulphides,.. whereas its reactions with ditertiary 25 glycols do not proceed. 4 Several other oxidizing systems have been developed such as BiPh 3 /NBS/K 2 CO 3 , 5 CrO 3 , 6 NIS, 7 Ta(NO 3 ) 3 , 8 CAN, 9 ... and, also hypervalent iodine compounds have been re-introduced in last years as a useful alternative. 10 Nevertheless, all of them present important disadvantages from 30 an environmentally point of view.…”