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, Masahiro Matsuoka Search for other works by this author on: Oxford Academic Koichi Nagata Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aoba, Sendai , Miyagi 980-8578, Japan Search for other works by this author on: Oxford Academic Ryoma Ohno Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae , Higashi-Osaka 577-8502, Japan Search for other works by this author on: Oxford Academic Tsukasa Matsuo Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae , Higashi-Osaka 577-8502, Japan Search for other works by this author on: Oxford Academic Hisako Hashimoto Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aoba, Sendai , Miyagi 980-8578, Japan Corresponding author: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aoba, Sendai, Miyagi 980-8578, Japan. Email: hisako.hashimoto.b7@tohoku.ac.jp Search for other works by this author on: Oxford Academic
https://orcid.org/0000-0003-3767-9507 Chemistry Letters, Volume 53, Issue 1, January 2024, upae002, https://doi.org/10.1093/chemle/upae002
Published:
11 January 2024
Article history
Received:
12 December 2023
Revision received:
06 January 2024
Accepted:
07 January 2024
Published:
11 January 2024
Corrected and typeset:
03 February 2024
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Masahiro Matsuoka, Koichi Nagata, Ryoma Ohno, Tsukasa Matsuo, Hisako Hashimoto, Reactions of neutral chromium silylyne complex with alkynes and butadiene: access to hom*oaromatic compounds and silacyclopentenyl complexes, Chemistry Letters, Volume 53, Issue 1, January 2024, upae002, https://doi.org/10.1093/chemle/upae002
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Abstract
Reactions of a chromium complex, featuring a Cr≡Si triple bond, with alkynes and butadiene were investigated. The former reaction yielded 4-membered metallasilacycles with a hom*oaromatic character through [2+2] cycloaddition, while the latter reaction afforded silacyclopentenyl complexes through [2+4] cycloaddition.
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A neutral chromium silylyne complex, featuring a Cr≡Si bond, underwent [2+2] cycloaddition reactions with terminal and internal alkynes to yield 4-membered metallasilacycles, which were suggested to have a hom*oaromatic character based on nucleus independent chemical shift (NICS) values. The same chromium silylyne complex reacted with butadiene to afford silacyclopentenyl complexes through a [2+4] cycloaddition reaction.
chromium, multiple bonds, silicon
© The Author(s) 2024. Published by Oxford University Press on behalf of the Chemical Society of Japan. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com
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