Details

Autor(en) / Beteiligte

• Kanno, Yuto
• Komuro, Takashi
• Tobita, Hiromi

Titel

Direct Conversion of a Si–C(aryl) Bond to Si–Heteroatom Bonds in the Reactions of η3‑α-Silabenzyl Molybdenum and Tungsten Complexes with 2‑Substituted Pyridines

Ist Teil von

• Organometallics, 2015-08, Vol.34 (15), p.3699-3705

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• η3-α-Silabenzyl complexes Cp*M­(CO)2{η3(Si,C,C)-Si­(p-Tol)3} (M = Mo (1-Mo), W (1-W)) reacted with 2-substituted pyridines NC5H4(2-EH n ) (E = O, S (n = 1); N (n = 2)) under mild conditions to give M–Si–E–C–N (E = O, N), W–Si–N–C–S, and M–E–C–N (E = S, N) metallacycles depending on the metal M or heteroatom E. These three kinds of metallacycles were characterized by spectroscopy, elemental analysis, and X-ray crystallography. The first two silametallacycles take on some silylene complex character and are considered to form via (aryl)­silylene complex intermediates generated by cleavage of the Si–C­(aryl) bond in the η3-α-silabenzyl ligand of 1-Mo and 1-W.