D. Diaz et Vs. Martin, Intramolecular propargylic reduction in gamma-benzyl protected Co-2(CO)(6)-alpha,gamma-acetylenic diols under Nicholas reaction conditions, TETRAHEDR L, 41(5), 2000, pp. 743-746
Lewis acid treatment of gamma-benzyl protected Co-2(CO)(6)-alpha,gamma-acet
ylenic diols yielded after cobalt demetallation bishomopropargylic alcohols
in good yields. The method works with both primary and secondary benzyl et
hers and is compatible with many kinds of protecting groups and functionali
ties. (C) 2000 Elsevier Science Ltd. All rights reserved.