| Literature DB >> 18811175 |
Tobias N Hoheisel1, Holger Frauenrath.
Abstract
A convenient and efficient sp-sp carbon heterocoupling protocol based on the Negishi reaction was developed, in which the required zinc diacetylide was generated from 1,4-bis(trimethylsilyl)butadiyne in situ and reacted with a bromoacetylene in apolar solvent mixtures. The method has been applied to the synthesis of unsymmetric glycosylated and symmetric diglycosylated oligo(ethynylene)s up to the octa(ethynylene).Entities:
Year: 2008 PMID: 18811175 DOI: 10.1021/ol801807a
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005