Synthesis of substituted naphthalenes from α-tetralones generated by a xanthate radical addition–cyclisation sequence
作者:Alejandro Cordero-Vargas、Inés Pérez-Martín、Béatrice Quiclet-Sire、Samir Z. Zard
DOI:10.1039/b411158c
日期:——
A simple, highly efficient and cheap synthesis of substitutednaphthalenes is reported. These aromatic compounds can be easily prepared in acidic or basic conditions from [small alpha]-tetralones, obtained by a xanthate-mediated addition-cyclisation sequence.
Synthetic studies on the CDEF ring system of lactonamycin
作者:Ronan Le Vézouët、Andrew J.P. White、Jeremy N. Burrows、Anthony G.M. Barrett
DOI:10.1016/j.tet.2006.10.004
日期:2006.12
cycloaddition reaction and (2) furan–benzyne cycloaddition, Suzuki cross-coupling, boron-mediated aldol, and electrophilic aromatic substitution reactions were examined for the construction of the CDEF ring system of lactonamycin (1).
Enantioselective Total Syntheses of Preussomerins: Control of Spiroacetal Stereogenicity by Photochemical Reaction of a Naphthoquinone through 1,6‐Hydrogen Atom Transfer
Photochemical reactions of naphthoquinones triggered by 1,6-hydrogen atom transfer have been developed. This reaction proceeds in stereospecific manner without loss of the stereochemical information of the substrate, enabling the enantioselective total synthesis of preussomerin EGs. The constructed spiroacetal center is the sole stereogenic center in the product, which had been previously impossible