sunlight-induced CC bond formation reactions upon the addition of alcohols/ethers/acetals to olefins proceeded efficiently using di-tert-butyl peroxide (DTBP). The reactions proceeded faster than many of the previously reported sunlight and many conventional lamp photolyses, typically in 3–4 h under irradiation with sunlight, in excellent yield using olefins bearing two electron withdrawing groups (EWGs)
Ru–BINAP-catalyzed asymmetric hydrogenation of keto esters in high pressure carbon dioxide
作者:Olga V. Turova、Ilya V. Kuchurov、Eugenia V. Starodubtseva、Vladimir A. Ferapontov、Nikolai S. Ikonnikov、Sergei G. Zlotin、Maxim G. Vinogradov
DOI:10.1016/j.mencom.2012.06.003
日期:2012.7
Asymmetric hydrogenation of ethyl 4-chloro-3-oxobutyrate and dimethyl acetylsuccinate in high pressure CO2 using [RuCl2(C6H6)](2)-(R)-BINAP as the catalyst provides high ee values for the products.