Synthesis 2007(18): 2809-2818  
DOI: 10.1055/s-2007-983884
PAPER
© Georg Thieme Verlag Stuttgart · New York

Iterative Synthesis of Oligo-1,4-diols via Catalytic Anti-Markovnikov Hydration of Terminal Alkynes

Thomas Kribber, Aurélie Labonne, Lukas Hintermann*
Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
e-Mail: lukas.hintermann@oc.rwth-aachen.de;
Further Information

Publication History

Received 24 January 2007
Publication Date:
29 August 2007 (online)

Abstract

A sequential, iterative synthesis of oligo-1,4-diol building blocks has been realized via (a) propargylation of an aldehyde with allenylzinc bromide, (b) alcohol protection and (c) ruthenium-catalyzed anti-Markovnikov hydration of the terminal alkyne to release an aldehyde for the next iteration. Linear chains with 1,4-, 1,4,7- 1,4,7,10- and 1,4,7,10,13- functionalization patterns have been obtained by consecutive sequential iterations.