22772-25-4Relevant academic research and scientific papers
One-Pot preparation of 2-arylbenzofurans from oximes with diaryliodonium triflate
Miyagi, Kotaro,Moriyama, Katsuhiko,Togo, Hideo
, p. 2122 - 2136 (2015/01/09)
A variety of 2-arylbenzofurans were obtained in good yields by the O-arylation of oximes with diaryliodonium triflates, followed by the treatment with HCl in dioxane under warming conditions through the [3,3]-sigmatropic reaction. The present reaction is one-pot transition metal-free method for the preparation of various 2-arylbenzofurans from oximes, which are easily available from the reaction of alkyl aryl ketones with hydroxylamine.
Pd-catalyzed tandem chemoselective synthesis of 2-arylbenzofurans using threefold arylating triarylbismuth reagents
Rao, Maddali L. N.,Jadhav, Deepak N.,Dasgupta, Priyabrata
, p. 781 - 788 (2013/03/13)
A tandem chemoselective synthesis of 2-arylbenzofurans was accomplished from o-hydroxy-gem-(dibromovinyl)benzenes and BiAr3 reagents under palladium-catalyzed conditions. This unique and synthetically valuable strategy proceeds through three consecutive coupling reactions involving triarylbismuth reagents and provides 2-arylbenzofuran products in high yields. A tandem chemoselective synthesis of 2-arylbenzofurans was accomplished from o-hydroxy-gem-(dibromovinyl)benzenes and BiAr3 reagents under palladium-catalyzed conditions. This unique and synthetically valuable strategy proceeds through three consecutive coupling reactions involving triarylbismuth reagents and provides 2-arylbenzofuran products in high yields. Copyright
Palladium-catalyzed cross-couplings of functionalized 2-bromobenzofurans for atom-economic synthesis of 2-arylbenzofurans using triarylbismuth reagents
Rao, Maddali L.N.,Awasthi, Dheeraj K.,Talode, Jalindar B.
supporting information; experimental part, p. 2662 - 2666 (2012/07/02)
The palladium catalyzed, atom-economic synthesis of various functionalized 2-arylbenzofurans was achieved through cross-coupling reaction of 2-bromobenzofurans with triarylbismuth reagents. The palladium catalytic protocol is very efficient to furnish various cross-coupled functionalized 2-arylbenzofurnas in high yields using triarylbismuth reagents with three aryl couplings as multi-coupling organometallic nucleophiles in one-pot operation. All the coupling reactions were completed in 1 h short reaction time involving three couplings from triarylbismuths under heating condition.
Synthesis and calcium antagonistic activity of a series of diethyl benzofuryl, benzothienyl and benzogammapyronyl benzylphosphonates
Baziard-Mouysset, G.,Tchani, G. W.,Stigliani, J. L.,Payard, M.,Bonnafous, R.,Tisne-Versailles, J.
, p. 539 - 546 (2007/10/02)
In this work we present about 15 original heterocyclic diethyl benzylphosphonate analogues of fostedil, in which we have varied the nature of the heterocycle, the substituents or the phosphonic group, or even the position of this latter.Three diethyl 4-(2
