WebDDQ (2,3-dichloro-5,6-dicyano- p -benzoquinone), as a one-electron oxidant giving a radical anion, has wide applications in the oxidation of steroid ketones, hydroaromatic compounds, alcohols, phenols, and … WebComprehensive analysis of the products obtained in the oxidative cyclization of the chalcone precursor with alkaline tert-butyl hydroperoxide (TBHP) was performed. For the first time, the auronol isomer of tetramethylmorin was characterized, which prefers the hydroxybenzofuran tautomer.

2,3-Dichloro-5,6-dicyano-p-benzoquinone (DDQ) as the …

WebThe Juliá–Colonna Epoxidation of a chalcone proceeds with poly-L-leucine and hydrogen peroxide in generic triphasic conditions. Image adapted from Juliá et al. [2] In the original triphasic protocol, the chalcone substrate is soluble in the organic phase, generally toluene or carbon tetrachloride. WebA conjugate addition of ethyl cyanoacetates to chalcones and subsequent iodine-promoted aerobic oxidation provides various α,δ-dicarbonyl esters. The present protocol features mild reaction conditions, high efficiency, easily available starting … bncs002c00

Epoxide synthesis by epoxidation - Organic Chemistry

WebFeb 3, 2012 · In this paper we have reported the detailed mechanism of oxidation of chalcones and some para- and meta-substituted chalcones by MCC. The reaction is first order with [oxidant] and [catalyst] and … WebSep 16, 2024 · The reaction mechanism included the DDQ oxidative dehydrogenation of 3-(indol-3-yl)-1,3-diphenylpropan-1-ones to the corresponding 3-vinylindoles, their acid … WebThis patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections. This search facility features: flexible search syntax; automatic word stemming and relevance ranking; as well as graphical results. bncs230pn10