64466-51-9Relevant articles and documents
Synthesis of novel pyranoquinones using an acyl radical cyclization strategy
Donner, Christopher D.,Casana, Myriam I.
scheme or table, p. 1105 - 1107 (2012/04/10)
The thiol-catalysed cyclization of acyl radicals generated directly from benzaldehyde precursors has been investigated. Hindered β- benzyloxyacrylates cyclize efficiently providing a tin-free radical cyclization approach to the serine/threonine kinase AKT inhibitor frenolicin B, whilst γ-aryloxy crotonates give good yields of benzopyran-4-ones. This method is applied to the synthesis of a novel tetracyclic analogue of the pyranonaphthoquinone antibiotics.
Synthesis of the bisbenzannelated spiroketal core of the γ-rubromycins. The use of a novel Nef-type reaction mediated by Pearlman's catalyst
Capecchi, Tanya,De Koning, Charles B.,Michael, Joseph P.
, p. 2681 - 2688 (2007/10/03)
The synthesis of the bisbenzannelated spiroketal core 6 of γ-rubromycin 1 from the substituted nitrostyrene 20 was achieved by using a novel Nef-type reaction mediated by Pearlman's catalyst. The precursor 28 was synthesised from readily prepared starting materials using Henry condensation chemistry. The product 6 was found to exist in two conformations in solution as shown by NMR spectroscopy.
A convenient preparation of salicylaldehydes from 2-methylbenzofurans by ozonolysis
Ishii,Ohia,Nashioka,Hayashida,Harayama
, p. 1166 - 1168 (2007/10/02)
A convenient and effective transformation of 2-methylbenzofuran (B) to salicylaldehyde (C) was achieved by ozonolysis of B in CH2Cl2 at -78°C followed by alkaline hydrolysis.
