59302-96-4Relevant academic research and scientific papers
Dual Cobalt and Photoredox Catalysis Enabled Redox-Neutral Annulation of 2-Propynolphenols
Ding, Hai-Xin,He, Yong-Qin,Song, Xian-Rong,Tian, Wan-Fa,Wang, Mei,Xiao, Qiang,Zhou, Zhao-Zhao,Zhu, Yao
supporting information, p. 3372 - 3377 (2021/06/08)
A hydroxyl-assisted, organophotoredox/cobalt dual catalyzed annulation of 2-propynolphenols to form 2-hydroxymethyl-benzo[b]furans was developed by employing 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) as photosensitizer and CoCl2/su
Facile synthesis of 2-substituted benzo[: B] furans and indoles by copper-catalyzed intramolecular cyclization of 2-alkynyl phenols and tosylanilines
Rong, Zhouting,Gao, Kexin,Zhou, Lei,Lin, Jianyuan,Qian, Guoying
, p. 17975 - 17978 (2019/06/24)
A catalytic amount of CuCl and Cs2CO3 was employed to synthesize a variety of 2-substituted benzo[b]furans and indoles by an intramolecular cyclization of 2-alkynyl phenols and tosylanilines. This protocol features mild conditions, h
Catalytic Carbonylative Double Cyclization of 2-(3-Hydroxy-1-yn-1-yl)phenols in Ionic Liquids Leading to Furobenzofuranone Derivatives
Mancuso, Raffaella,Miliè, Rossana,Palumbo Piccionello, Antonio,Olivieri, Diego,Della Ca, Nicola,Carfagna, Carla,Gabriele, Bartolo
, p. 7303 - 7311 (2019/06/17)
A catalytic carbonylative double cyclization method for the synthesis of furo[3,4-b]benzofuran-1(3H)-ones is reported. It is based on the reaction between readily available 2-(3-hydroxy-1-yn-1-yl)phenols, CO, and oxygen carried out in the presence of cata
One-pot synthesis of 2-substituted benzo[b]furans via Pd-tetraphosphine catalyzed coupling of 2-halophenols with alkynes
Zhou, Rong,Wang, Wei,Jiang, Zhi-Jie,Wang, Kun,Zheng, Xue-Li,Fu, Hai-Yan,Chen, Hua,Li, Rui-Xiang
supporting information, p. 6023 - 6026 (2014/05/20)
A catalyst composed of [Pd(η3-C3H 5)Cl]2 and N,N,N',N'-tetra(diphenylphosphinomethyl) pyridine-2,6-diamine (L) was found to be effective for one-pot synthesis of 2-substituted benzo[b]furans from 2-halophenols and alkynes. For 2-bromo-3-hydroxypyridine, the catalyst loading could be as low as 1 ppm and the turnover number (TON) was up to 870000. the Partner Organisations 2014.
Synthesis of 2-substituted benzofurans from o-iodophenols and terminal alkynes with a recyclable palladium catalyst supported on nano-sized carbon balls under copper- and ligand-free conditions
Yum, Eul Kgun,Yang, Ok-Kyung,Kim, Ji-Eun,Park, Hee Jung
, p. 2645 - 2649 (2013/10/22)
We have developed a one-step synthesis of benzofurans from o-iodophenol and various terminal alkynes, by using Pd catalyst supported on nano-sized carbon balls (NCB) under copper- and ligand free conditions. This recyclable catalyst could be reused more than 5 times in the same heteroannulation reaction. The results have demonstrated that diverse 2-substituted benzofurans with tolerant functional groups can be prepared simply and conveniently under these conditions.
Scope and mechanism of the (4+3) cycloaddition reaction of furfuryl cations
Winne, Johan M.,Catak, Saron,Waroquier, Michel,Van Speybroeck, Veronique
supporting information; experimental part, p. 11990 - 11993 (2012/02/14)
It all adds up: Furfuryl alcohols are revealed as direct reaction partners for a wide range of conjugated dienes in a (4+3) cycloaddition motif (see scheme). This novel Lewis acid promoted process gives straightforward access to various polycyclic skeletons containing a seven-membered ring. A plausible cationic stepwise mechanism was confirmed by DFT calculations. Copyright
A novel water-soluble m-TPPTC ligand: Steric and electronic features - Recent developments in Pd- and Rh-catalyzed C-C bond formations
Genin, Emilie,Amengual, Remi,Michelet, Veronique,Savignac, Monique,Jutand, Anny,Neuville, Luc,Genet, Jean-Pierre
, p. 1733 - 1741 (2007/10/03)
The steric and electronic features of the novel water-soluble phosphane m-TPPTC have been determined using NMR, IR and UV-VIS spectroscopic methods and compared to the well-known sulfonated analogue TPPTS. The higher basicity of m-TPPTC compared to TPPTS
Pd/C mediated synthesis of 2-substituted benzo[b]furans/nitrobenzo[b] furans in water
Pal, Manojit,Subramanian, Venkataraman,Yeleswarapu, Koteswar Rao
, p. 8221 - 8225 (2007/10/03)
An efficient synthesis of 2-alkyl/aryl substituted benzo[b]furans/nitrobenzo[b]furans in water has been accomplished via Pd/C catalyzed reaction of o-iodophenols with terminal alkynes in the presence of PPh3, CuI and prolinol. This method can t
Palladium-catalysed heteroannulation with acetylenic compounds: Synthesis of benzofurans
Kundu, Nitya G.,Pal, Manojit,Mahanty, Jyan S.,De, Mahuya
, p. 2815 - 2820 (2007/10/03)
A detailed study of the heteroannulation of 0-iodophenol with acetylenic substrates through palladiumcopper catalysis leading to the synthesis of the 2-substituted benzofurans 21-29 is reported. An acylic compound 30 has been isolated and proved to be an intermediate in the synthesis of the benzofurans. Some of the benzofurans have been transformed into biologically active compounds.
A short synthetic route to benzofurans. syntheses of naturally occurring euparin and related compounds
Sogawa, Akihiro,Tsukayama, Masao,Nozaki, Hiroshi,Nakayama, Mitsuru
, p. 101 - 111 (2007/10/02)
Euparin (4a) and related benzofurans (4b-e, g) were synthesized by conversion of the corresponding o-(3-hydroxy-3-methylbutynyl)phenyl tosylates (2) in the presence of base into the 2-(1-hydroxy-1-methylethyl)benzofurans (3), followed by dehydration in hi
