Reactions of a Silylyne Complex with Aldehydes: Formation of W−Si−O−C Four-Membered Metallacycles and Their Metathesis-Like Fragmentation

Takashi Yoshimoto, Hisako Hashimoto, Nozomi Takagi, Shigeyoshi Sakaki, Naoki Hayakawa, Tsukasa Matsuo, Hiromi Tobita

研究成果: Article査読

2 被引用数 (Scopus)

抄録

A tungsten silylyne complex having a W≡Si triple bond reacted with two molecules of aldehydes at room temperature to give W−Si−O−C four-membered metallacycles by [2+2] cycloaddition and subsequent formyl hydrogen transfer from one aldehyde molecule to another. Upon heating to 70 °C, the four-membered metallacycles underwent metathesis-like fragmentation cleanly to afford carbyne complexes and “silanoic esters,” in a manner similar to that of metallacyclobutadiene, an intermediate of alkyne metathesis reactions, and dimerization of the latter products gave 1,3-cyclodisiloxanes. The “silanoic ester” was also trapped by pivalaldehyde to give a [2+2] cycloaddition product in high yield.

本文言語English
ページ(範囲)3795-3798
ページ数4
ジャーナルChemistry - A European Journal
25
15
DOI
出版ステータスPublished - 2019 3 12

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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