Cite

    Nambu, H., Fukumoto, M., Hirota, W., Ono, N., & Yakura, T. (2015). an efficient synthesis of cycloalkane-1, 3-dione-2-spirocyclopropanes from 1, 3-cycloalkanediones using (1-aryl-2-bromoethyl)-dimethylsulfonium bromides: application to a one-pot synthesis of tetrahydroindol-4(5H)-one. Tetrahedron letters, 56(29), 4312–4315. http://access.bl.uk/ark:/81055/vdc_100042266692.0x00004c