5746-94-1Relevant academic research and scientific papers
Br?nsted acid-mediated ring-opening reactions of methylenecyclopropanes: A dramatic counter ion effect
Shao, Li-Xiong,Huang, Jin-Wen,Shi, Min
, p. 11895 - 11901 (2004)
We report herein two different ring-opening patterns of methylenecyclopropanes (MCPs) in the presence of two Br?nsted acids heptadecafluorooctane-1-sulfonic acid (C8F17SO 3H) and toluene p-sulfonic acid (TsOH) under mild conditions: (a) the ring-opening of MCPs by H2O and subsequent etherification give the corresponding homoallylic ethers in the presence of heptadecafluorooctane-1- sulfonic acid; (b) the direct ring-opening of MCPs by the Br?nsted acid gives the corresponding homoallylic alcohol derivatives in the presence of toluene p-sulfonic acid. We report two different ring-opening patterns of methylenecyclopropanes (MCPs) in the presence of two Br?nsted acids heptadecafluorooctane-1-sulfonic acid (C8F17SO 3H) and toluene p-sulfonic acid (TsOH): (a) the ring-opening of MCPs by H2O and subsequent etherification give the corresponding homoallylic ethers in the presence of heptadecafluorooctane-1-sulfonic acid; (b) the direct ring-opening of MCPs by the Br?nsted acid gives the corresponding homoallylic alcohol derivatives in the presence of toluene p-sulfonic acid.
Rhodium-Catalyzed Alkene Difunctionalization with Nitrenes
Ciesielski, Jennifer,Dequirez, Geoffroy,Retailleau, Pascal,Gandon, Vincent,Dauban, Philippe
supporting information, p. 9338 - 9347 (2016/07/14)
The RhII-catalyzed oxyamination and diamination of alkenes generate 1,2-amino alcohols and 1,2-diamines, respectively, in good to excellent yields and with complete regiocontrol. In the case of diamination, the intramolecular reaction provides
