99932-02-2Relevant academic research and scientific papers
A Bifunctional Ligand Enables Gold-Catalyzed Hydroarylation of Terminal Alkynes under Soft Reaction Conditions
Cheng, Xinpeng,Kong, Weiguang,Li, Bo,Li, Ting,Luo, Baomin,Yang, Hao,Yang, Yuhan,Zhang, Liming,Zong, Luyi
, (2020/07/30)
An efficient gold-catalyzed hydroarylation of alkynes under soft reaction conditions is developed by utilizing a bifunctional ligand. This transformation features a broad substrate scope and thus exhibits moderate to excellent efficiency.
Annulative synthesis of benzofurans from general alkenyl sulfoxides and phenols via pummerer/sigmatropic cascade
Hori, Mitsuki,Yanagi, Tomoyuki,Murakami, Kei,Nogi, Keisuke,Yorimitsu, Hideki
, p. 302 - 311 (2019/02/25)
In addition to ketene dithioacetal monoxides that were specially designed and have been used so far, general alkenyl sulfoxides of moderate reactivity have now become applicable as substrates in the trifluoroacetic anhydride-mediated annulation with pheno
Iridium-Catalyzed Aerobic Coupling of Salicylaldehydes with Alkynes: A Remarkable Switch of Oxacyclic Product
Yamane, Shintaro,Hinoue, Tomoaki,Usuki, Yoshinosuke,Itazaki, Masumi,Nakazawa, Hiroshi,Hayashi, Yoshihiro,Kawauchi, Susumu,Miura, Masahiro,Satoh, Tetsuya
supporting information, p. 7852 - 7855 (2018/05/08)
The iridium(III)/copper(II)-catalyzed dehydrogenative coupling of salicylaldehydes with internal alkynes proceeds efficiently under atmospheric oxygen through aldehyde C?H bond cleavage and decarbonylation. A variety of benzofuran derivatives can be synthesized by the environmentally benign procedure. DFT calculations suggest that this unique transformation involves the facile deinsertion of CO in the key metallacycle intermediate, which is in marked contrast to the corresponding rhodium(III) catalysis that leads to CO-retentive chromone derivatives.
A simple and efficient synthesis of 2,3-diarylnaphthofurans using sequential hydroarylation/Heck oxyarylation
Rao, V. Kameshwara,Shelke, Ganesh M.,Tiwari, Rakesh,Parang, Keykavous,Kumar, Anil
, p. 2190 - 2193 (2013/06/05)
An efficient and simple strategy has been developed for the synthesis of 2,3-diarylnaphthofurans using sequential hydroarylation of naphthols and alkynes in the presence of In(OTf)3 under microwave irradiation followed by one-pot Heck-oxyarylat
A new synthetic strategy for the synthesis of bioactive stilbene dimers. A direct synthesis of amurensin H
Kraus, George A.,Gupta, Vinayak
experimental part, p. 7180 - 7183 (2010/03/03)
2,3-Diarylbenzofurans are efficiently generated by the cyclization of ortho-benzyloxybenzophenones using the hindered phosphazene base P4-t-Bu.
An efficient method to synthesize benzofurans and naphthofurans
Pan, Chongfeng,Yu, Jie,Zhou, Yuqing,Wang, Zhiyong,Zhou, Ming-Ming
, p. 1657 - 1662 (2008/02/04)
A new method for synthesis of benzofurans and naphthofurans from 2-hydroxystilbene derivatives via an intermolecular cyclization is reported in this study with up to 94% isolated yield. Georg Thieme Verlag Stuttgart.
Condensations of benzil with phenols and aryl ethers mediated by tin(IV) chloride pentahydrate
Morrison, Brian J,Musgrave, Oliver C
, p. 4255 - 4260 (2007/10/03)
The reaction of benzil with phenol at 180°C in the presence of SnCl4·5H2O produces a benzofuran, a benzofuranol, a benzodifuran, and a benzofuranone. Anhydrous tin(IV) chloride also gives a benzofuranofuranone. Other phenols and their methyl ethers yield related products. The good yields of the benzo- and naphtho-furanones make the method an attractive alternative to the benzilic acid route to such compounds.
Thermolysis of 2,3-Dihydro-1,3-diaryl-2-benzyl-1H-naphthoxazines: Formation of Novel Ring Contraction Products
Reddy, V. Prabhakar,Hanumanthu, P.,Ratnam, C. V.
, p. 434 - 436 (2007/10/02)
2,3-Dihydro-1,3-diphenyl-2-benzyl-1H-naphthoxazine (1a) on thermolysis yield 1,2-diphenylnaphthfuran (2a), trans-1,3-diphenylbenzisoindoline (3a) and 1,3-diphenyl-2-benzyl-2H-benzisoindole (4a).
