Wang Y, Jimenez M, Hansen AS, Raiber EA, Schreiber SL, Young DW. Control of olefin geometry in macrocyclic ring-closing metathesis using a removable silyl group.
J Am Chem Soc 2011;
133:9196-9. [PMID:
21557625 DOI:
10.1021/ja202012s]
[Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Introducing a silyl group at one of the internal olefin positions in diolefinic substrates results in E-selective olefin formation in macrocyclic ring-forming metathesis. The application of this method to a range of macrocyclic (E)-alkenylsiloxanes is described. Protodesilylation of alkenylsiloxane products yields novel Z-configured macrocycles.
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