[4+2] cycloaddition reaction of cyclic alkyne-{Co2(CO)6} complexes with dienes.

@article{Iwasawa201042CR,
  title={[4+2] cycloaddition reaction of cyclic alkyne-\{Co2(CO)6\} complexes with dienes.},
  author={Nobuharu Iwasawa and Isao Ooi and Kennichi Inaba and Jun Takaya},
  journal={Angewandte Chemie},
  year={2010},
  volume={49 41},
  pages={
          7534-7
        }
}
7 Citations
Photoinduced, strain-promoted cycloadditions oftrans-cycloheptenones and azides
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The title reaction has been successfully applied as a bioconjugation tool for in vitro protein labeling and could be extended to the 1,3-dipolar cycloadditions of trans- cyclooctenone with azide and trans-cyclohepten one with nitrile oxide.
Expedient synthesis of a symmetric cycloheptyne-Co2(CO)6 complex for orthogonal Huisgen cycloadditions
A cycloheptyne dicobalt-carbonyl complex with a terminal alkyne was synthesized by a short procedure, and was able to react selectively in Strain Promoted Alkyne Azide Cycloaddition (SPAAC) or Copper
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TLDR
Cycloheptynes and cyclooctynes were efficiently generated via a sulfoxide-magnesium exchange reaction of readily synthesized 2-sulfinylcycloalkenyl triflates, providing an easy method to prepare a wide range of heterocycles fused with seven- or eight-membered carbocycles.
Transannular [4 + 2] Cycloaddition Reactions of Cobalt-Complexed Macrocyclic Dienynes.
TLDR
The first transannular [4 + 2] cycloaddition reactions of macrocyclic dicobalt hexacarbonyl-dienyne complexes were demonstrated and intermolecular control reactions confirmed the effect of cobalt complexation on [ 4 + 2], which occurred at lower temperatures and shorter times thanTransannular Diels-Alder reactions of metal-free dienynes.
1,3-Dipolar cycloaddition of 4-platinumisochromenyliums with an olefin and tandem insertion into benzylic C-H bonds.
Isochromenylium-4-ylplatinum(II) species, generated from 1-(2-alkynylphenyl)hex-5-en-1-ones and Pt(II), reacted with a pendant olefin via [3+2] cycloaddition to form tetracyclic Pt-carbene complexes,
En route to dinitroacetylene: nitro(trimethylsilyl)acetylene and nitroacetylene harnessed by dicobalt hexacarbonyl.
TLDR
It is reported that nitroacetylenes can be dramatically stabilized in the form of their dicobalt hexacarbonyl complexes.
Rhodium(I)-Catalyzed Pauson–Khand-type [3 + 2 + 1] Cycloaddition Reaction of Ene-Vinylidenecyclopropanes and CO: A Highly Regio- and Stereoselective Synthetic Approach for the Preparation of Aza- and Oxa-Bicyclic Compounds
In this paper, a novel Rh(I)-catalyzed Pauson–Khand-type [3 + 2 + 1] cycloaddition reaction of ene-vinylidenecyclopropanes (Ene-VDCPs) and carbon monoxide (CO) has been developed to furnish a series

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