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Synthesis 2012; 44(11): 1603-1613
DOI: 10.1055/s-0031-1289758
DOI: 10.1055/s-0031-1289758
feature article
Synthesis of Chromanes through RCM–Transfer Hydrogenation
Further Information
Publication History
Received: 02 March 2012
Received after revision: 23 March 2012
Publication Date:
24 April 2012 (online)


Abstract
A sequential ruthenium-catalyzed ring-closing metathesis–transfer hydrogenation sequence has been established as a synthesis of chromanes starting from 2-(allyloxy)styrenes. The sequence requires only one precatalyst, the first-generation Grubbs catalyst, which is converted into a ruthenium hydride species in situ. Propan-2-ol serves as a chemical trigger for the formation of the ruthenium hydride and as hydrogen source.
Supporting Information
- for this article is available online at http://www.thieme-connect.com/ejournals/toc/synthesis.
- Supporting Information