Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions

The 7-azabicyclo[4.3.1]decane ring system, common to a number of biologically active alkaloids, was accessed from tropone (via its η4-diene complex with Fe(CO)3) in a short sequence of steps: 1) nucleophilic amine addition and subsequent Boc-protection, 2) photochemical demetallation of the iron com...

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Main Authors: Aaron H. Shoemaker, Elizabeth A. Foker, Elena P. Uttaro, Sarah K. Beitel, Daniel R. Griffith
Format: Article
Language:English
Published: Beilstein-Institut 2023-10-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
Online Access:https://doi.org/10.3762/bjoc.19.118
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author Aaron H. Shoemaker
Elizabeth A. Foker
Elena P. Uttaro
Sarah K. Beitel
Daniel R. Griffith
author_facet Aaron H. Shoemaker
Elizabeth A. Foker
Elena P. Uttaro
Sarah K. Beitel
Daniel R. Griffith
author_sort Aaron H. Shoemaker
collection DOAJ
description The 7-azabicyclo[4.3.1]decane ring system, common to a number of biologically active alkaloids, was accessed from tropone (via its η4-diene complex with Fe(CO)3) in a short sequence of steps: 1) nucleophilic amine addition and subsequent Boc-protection, 2) photochemical demetallation of the iron complex, and 3) an intramolecular Heck reaction. Minor modifications to the protocol enabled access to the related 2-azabicyclo[4.4.1]undecane system, albeit in lower yield.
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spelling doaj.art-5421ed867b3a4fc0b1f4452930873b552023-11-09T15:03:35ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972023-10-011911615161910.3762/bjoc.19.1181860-5397-19-118Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactionsAaron H. Shoemaker0Elizabeth A. Foker1Elena P. Uttaro2Sarah K. Beitel3Daniel R. Griffith4Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA The 7-azabicyclo[4.3.1]decane ring system, common to a number of biologically active alkaloids, was accessed from tropone (via its η4-diene complex with Fe(CO)3) in a short sequence of steps: 1) nucleophilic amine addition and subsequent Boc-protection, 2) photochemical demetallation of the iron complex, and 3) an intramolecular Heck reaction. Minor modifications to the protocol enabled access to the related 2-azabicyclo[4.4.1]undecane system, albeit in lower yield.https://doi.org/10.3762/bjoc.19.118alkaloidsazabicyclesheck reactioniron complextropone
spellingShingle Aaron H. Shoemaker
Elizabeth A. Foker
Elena P. Uttaro
Sarah K. Beitel
Daniel R. Griffith
Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions
Beilstein Journal of Organic Chemistry
alkaloids
azabicycles
heck reaction
iron complex
tropone
title Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions
title_full Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions
title_fullStr Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions
title_full_unstemmed Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions
title_short Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions
title_sort synthesis of 7 azabicyclo 4 3 1 decane ring systems from tricarbonyl tropone iron via intramolecular heck reactions
topic alkaloids
azabicycles
heck reaction
iron complex
tropone
url https://doi.org/10.3762/bjoc.19.118
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