638-51-7Relevant articles and documents
Oxidation of benzylic alcohols and ethers to carbonyl derivatives by nitric acid in dichloromethane
Strazzolini, Paolo,Runcio, Antonio
, p. 526 - 536 (2007/10/03)
Nitric acid in dichloromethane may be successfully employed for the oxidation of benzylic alcohols and ethers to the corresponding carbonyl compounds. The proposed method proved to be of general applicability, affording very good yields of aldehydes and ketones and showing interesting chemoselectivity in many instances, allowing competitive aromatic nitration to be avoided, as well as - in the case of aldehydes - any further oxidation to carboxylic acids. The reaction probably proceeds by a radical mechanism, the active species in the oxidation process being NO2. Competitive formation of nitro esters was observed in some cases, whereas poor results were obtained with allylic and non-benzylic substrates. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
Tris(substituted amino) sulfonium salts
-
, (2008/06/13)
Trisaminosulfonium salts of the formula (R1 R2 N)(R3 R4 N)(R5 R6 N)S+ X- wherein the R groups are alkyl of 1-20 carbons and each alkyl has at least 2 alpha hydrogens and X is selected from the group (CH3)3 SiF2, Cl, Br, I, CN, NCO, NCS NO2 and N3, are soluble in organic liquids. They are useful as polymerization catalysts and as reagents to replace other atoms or groups in organic compounds with F, Cl, Br, I, CN, NCO, NCS, NO2 or N3.