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Issue 83, 2020
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Iron(ii)-induced cycloisomerization of alkynes via “non-vinylidene” pathways for iron(ii)-indolizine and -indolizinone complexes

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Abstract

Reactions between pyridine-functionalized alkynes and an Fe(II) precursor supported by 2,5,8-trithia[9](2,9)-1,10-phenanthrolinophane afforded the first Fe(II)-indolizine and -indolizinone complexes. Structural analysis and theoretical calculations revealed the existence of unconventional “non-vinylidene” pathways and challenged the generality of vinylidene intermediacy in Fe(II)-induced alkyne transformations.

Graphical abstract: Iron(ii)-induced cycloisomerization of alkynes via “non-vinylidene” pathways for iron(ii)-indolizine and -indolizinone complexes

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Article information


Submitted
25 Jul 2020
Accepted
11 Sep 2020
First published
22 Sep 2020

Chem. Commun., 2020,56, 12644-12647
Article type
Communication

Iron(II)-induced cycloisomerization of alkynes via “non-vinylidene” pathways for iron(II)-indolizine and -indolizinone complexes

S. Chan, C. Yeung, H. Shek, S. Ng, S. Tse, M. Tse, S. Yiu and C. Wong, Chem. Commun., 2020, 56, 12644
DOI: 10.1039/D0CC05081D

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