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Enantioselective Hydrosilylation and Hydrogenation of Alkaloid Precursors

URN to cite this document:
urn:nbn:de:bvb:355-epub-156736
DOI to cite this document:
10.5283/epub.15673
Brunner, H. ; Kürzinger, A. ; Mahboobi, Siavosh ; Wiegrebe, Wolfgang
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Date of publication of this fulltext: 07 Jul 2010 05:07


Abstract

Enantioselective hydrosilylations of the 3,4-dihydropyrrole derivatives 1a-c and 5 with in-situ catalysts consisting of [Rh(cod)Cl]2 and optically active phosphines yield the N-silyl compounds 2a-c and 6 in up to 66.1 % ee. The N-silyl derivatives were treated with acetic formic anhydride or trifluoroacetic anhydride to give the N-formyl and N-trifluoroacetyl compounds 3a-c, 4a-c, 7, and 8. The ...

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