13632-64-9Relevant articles and documents
Lewis acid catalyzed cascade reaction of 3-(2-benzenesulfonamide)propargylic alcohols to spiro[indene-benzosultam]s
Sun, Lang,Zhu, Yuanxun,Wang, Jing,Lu, Ping,Wang, Yanguang
, p. 242 - 245 (2015)
A highly efficient and convenient construction of the spiro[indene-benzosultam] skeleton from propargylic alcohols has been developed. The reaction proceeded in a Lewis acid catalyzed cascade process, including the trapping of allene carbocation with sulfonamide, electrophilic cyclization, and intramolecular Friedel-Crafts alkylation. In the presence of NIS or NBS, iodo/bromo-substituted spiro[indene-benzosultam]s could be prepared in excellent yields.
Electron-poor rhenium allenylidenes and their reactivity toward phosphines: A combined experimental and theoretical study
Coletti, Cecilia,Gonsalvi, Luca,Guerriero, Antonella,Marvelli, Lorenza,Peruzzini, Maurizio,Reginato, Gianna,Re, Nazzareno
, p. 57 - 69 (2012)
The reaction of 1-(phenyl)-1-(p-nitrophenyl)-2-propyn-1-ol with the Re(I) precursor [(triphos)(CO)2Re(OTf)] in dichloromethane at 0 °C afforded the cationic allenylidene complex [(triphos)(CO)2Re{C=C= C(C6H5)(p-
Alpha-ethynyl benzohydrols
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, (2008/06/13)
The invention is a new process for the preparation of α-ethynyl-benzohydrols and of ring-substituted derivatives thereof by reacting the starting benzophenone or a ring-substituted derivative thereof with acetylene in a solvent delivering no protons, in t