Metal-Free Visible-Light-Mediated Aromatization of 1,2-Dihydronaphthalenes
نویسندگان
چکیده
منابع مشابه
Metal-free, visible-light-mediated, decarboxylative alkylation of biomass-derived compounds†
This work describes a mild, environmentally friendly method to activate natural carboxylic acids for decarboxylative alkylation. After esterification of biomass-derived acids to N-(acyloxy)phthalimides, the active esters are cleaved reductively by photocatalysis to give alkyl radicals, which undergo C–C bond formation with electron-deficient alkenes. This reaction is catalyzed by the organic dy...
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The formation and use of iminyl radicals in novel and divergent hydroimination and iminohydroxylation cyclization reactions has been accomplished through the design of a new class of reactive O-aryl oximes. Owing to their low reduction potentials, the inexpensive organic dye eosin Y could be used as the photocatalyst of the organocatalytic hydroimination reaction. Furthermore, reaction conditio...
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Visible-light-mediated photoredox catalysis is a viable method to access highly reactive intermediates from cheap, readily available, and shelf-stable reagents to perform clean chemical transformations. Here, we report the first photoredox-catalyzed Achmatowicz reaction of furfuryl alcohol derivatives to produce functionalized dihydropyranones while only forming easily separable NaHSO4 as a byp...
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A mild and operationally convenient amino-functionalization of a range of tertiary alkyl halides by reaction with iminoiodinanes (PhI[double bond, length as m-dash]NNs) and I2 has been developed. According to the mechanistic experiments described within, the reaction is speculated to proceed through a light-promoted, N-centered radical pathway involving a N,N-diiodosulfonamide reactive species....
متن کاملA visible-light-mediated synthesis of carbazoles.
Carbazole, discovered over 100 years ago, is a privileged heterocyclic motif whose electronic and structural features have allowed its derivatives to find numerous applications. In addition to its abundance in natural products and bioactive molecules, carbazole has been a key motif in the development of organic light-emitting materials because of its wide band gap, high luminescent efficiency, ...
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ژورنال
عنوان ژورنال: European Journal of Organic Chemistry
سال: 2019
ISSN: 1434-193X
DOI: 10.1002/ejoc.201901410