Stereoselective synthesis of (3E,5E)-dien-2-ones and (2E,4E)-dienals via 2-phenylsulfonyl 1,3-dienes
In: Tetrahedron Letters, Jg. 33 (1992), S. 131-134
Online
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Zugriff:
Michael addition of nitroalkanes to 2-phenylsulfonyl 1,3 dienes proceeded smoothly in the presence of DBU to give nitrosulfones (e.g. 2) in high yield. Transformation of the nitro group of the adduct to a keto function (Nef type reaction) and subsequent elimination of benzenesulfinic acid afforded conjugated dienones and dienals with high stereoselectivity.
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Stereoselective synthesis of (3E,5E)-dien-2-ones and (2E,4E)-dienals via 2-phenylsulfonyl 1,3-dienes
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Autor/in / Beteiligte Person: | Plobeck, Niklas A. ; Juntunen, Seppo K. ; Bäckvall, Jan-E. ; Ericsson, Anna M. |
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Zeitschrift: | Tetrahedron Letters, Jg. 33 (1992), S. 131-134 |
Veröffentlichung: | Elsevier BV, 1992 |
Medientyp: | unknown |
ISSN: | 0040-4039 (print) |
DOI: | 10.1016/s0040-4039(00)77694-5 |
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