Tandem Inter [4 + 2]/Intra [3 + 2] Cycloadditions of Nitroalkenes. the Bridged Mode (β-Tether)

Scott E Denmark, Julie A. Dixon

Research output: Contribution to journalArticle


A new variation of the tandem inter [4 + 2]/intra [3 + 2] cycloaddition of nitroalkenes has been developed. This method involves the Lewis acid-promoted [4 + 2] cycloaddition of nitro olefins 12 with 1-alkoxy-1,4-dienes 3. The resulting nitronates 13, bearing a C(5) tethered dipolarophile, undergo thermal, intramolecular [3 + 2] cycloaddition to afford stable tricyclic nitroso acetals 14, which can be subsequently reduced to unveil a new carbocycle 16, Thus, in three steps, highly functionalized aminocyclopentanes can be stereoselectively constructed in high yield.

Original languageEnglish (US)
Pages (from-to)6167-6177
Number of pages11
JournalJournal of Organic Chemistry
Issue number18
StatePublished - Sep 4 1998


ASJC Scopus subject areas

  • Organic Chemistry

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