3609-53-8Relevant articles and documents
Reaction of naphthalene-2,3-dicarbaldehyde with cyanide; a unique oxidative condensation product
McGill, Colin M.,Swearingen, Kristian E.,Drew, Kelly L.,Rasley, Brian T.,Green, Thomas K.
, p. 475 - 481 (2005)
Naphthalene-2,3-dicarbaldehyde (NDA), a reagent used for the fluorescent detection of amino acids in the presence of cyanide, self-condenses in the presence of cyanide ion and methanol at room temperature to yield a unique crystalline product 2, 15-hydroxybenzo[g]benzo[6,7]isochromeno[4,3-c]isochromen- 7(15H)-one. The product is proposed to result from facile air oxidation of NDA to a methyl ester in combination with benzoin condensation. Product 2 does not to form in the absence of air. The gHMBC spectrum of 2 distinguishes it from a possible alternative isomeric condensation product.
Visible light-mediated, high-efficiency oxidation of benzyl to acetophenone catalyzed by fluorescein
Geng, Haoxing,Liu, Xin,Zhu, Qing
supporting information, (2021/12/20)
An environmentally friendly aerobic oxidation of benzyl C(sp3)-H bonds to ketones via selective oxidation catalysis was developed. Fluorescein is an efficient photocatalyst with excellent chemical selectivity. The reaction has a wide substrate scope, and a successful gram-scale experiment demonstrated its potential industrial utility.
Metal- And additive-free C-H oxygenation of alkylarenes by visible-light photoredox catalysis
García Manche?o, Olga,Kuhlmann, Jan H.,Pérez-Aguilar, María Carmen,Piekarski, Dariusz G.,Uygur, Mustafa
supporting information, p. 3392 - 3399 (2021/05/21)
A metal- and additive-free methodology for the highly selective, photocatalyzed C-H oxygenation of alkylarenes under air to the corresponding carbonyls is presented. The process is catalyzed by an imide-acridinium that forms an extremely strong photooxidant upon visible light irradiation, which is able to activate inert alkylarenes such as toluene. Hence, this is an easy to perform, sustainable and environmentally friendly oxidation that provides valuable carbonyls from abundant, readily available compounds.