856333-79-4Relevant academic research and scientific papers
Synthesis of 3-Organoselenyl-2H-Coumarins from Propargylic Aryl Ethers via Oxidative Radical Cyclization
Fang, Jun-Dan,Yan, Xiao-Biao,Zhou, Li,Wang, Yu-Zhao,Liu, Xue-Yuan
, p. 1985 - 1990 (2019/03/13)
A metal-free oxidative radical cyclization/selenylation of propargylic aryl ethers with diaryl diselenides was developed. This protocol provided an alternative method to synthesize 3-organoselenyl-2H-coumarins via the formation of C?Se bond, C?C bond, and C=O bond in one step. Moreover, a broad range of functional groups (such as halogen, aldehyde, ketone, cyano, and nitro group) were tolerated. (Figure presented.).
Diphenyl-Diselenide-Mediated Domino Claisen-Type Rearrangement/Cyclization of Propargylic Aryl Ethers: Synthesis of Naphthofuran-2-carboxaldehyde Derivatives
Fang, Jun-Dan,Yan, Xiao-Biao,Lin, Wu-Jie,Zhao, Yi-Chuan,Liu, Xue-Yuan
, p. 7635 - 7638 (2019/10/14)
A diphenyl-diselenide-mediated Claisen-type rearrangement/cyclization of propargylic aryl ethers under metal-free conditions is developed, affording various naphthofuran-2-carboxaldehydes in moderate to excellent yield. The broad substrate scope and excel
Microwave-assisted Claisen rearrangement of naphthyl 2-propynyl ethers: Synthesis of naphthofurans
Prasada Rao Lingam,Dahale, Dnyaneshwar H.,Mukkanti, Kagga,Gopalan, Balasubramanian,Thomas, Abraham
, p. 5695 - 5698 (2012/10/29)
An efficient two-step approach for the synthesis of naphtho[1,2-b]furans and naphtho[2,1-b]furans has been developed. Various functionalized propargyl alcohols were etherified with α- or β-naphthol under Mitsunobu reaction conditions to give naphthyl 2-pr
Synthesis of 3,4-disubstituted 2H-benzopyrans through C-C bond formation via electrophilic cyclization
Worlikar, Shilpa A.,Kesharwani, Tanay,Yao, Tuanli,Larock, Richard C.
, p. 1347 - 1353 (2007/10/03)
(Chemical Equation Presented) The electrophilic cyclization of substituted propargylic aryl ethers by I2, ICl, and PhSeBr produces 3,4-disubstituted 2H-benzopyrans in excellent yields. This methodology results in vinylic halides or selenides un
