0 Hits

  • Previous / Next

You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via
2.10.11 Product Subclass 11: Titanium–Alkene Complexes

DOI: 10.1055/sos-SD-002-00576

Mikami, K.; Matsumoto, Y.; Shiono, T.Science of Synthesis, (20032563.

Complexes containing metalalkene bonds may, alternatively, be regarded as metallacyclopropanes (cf. 261A and 261B; Scheme 128). A stabilizing ligand such as cyclopentadienyl is often employed for the metal. Alkenetitanium complexes have been prepared by ligand displacement or reduction of halotitanium complexes in the presence of alkene. [Ti(Cp)2(H2C=CH2)] (261A) and [Ti(Cp*)2(H2C=CH2)] (263) are highly reactive towards electrophiles and unsaturated organic molecules, giving the corresponding titanacycles (Scheme 128).[‌365‌] The X-ray structure analysis of a bicyclic titanacyclopentane 262, prepared from [Ti(Cp)2(H2C=CH2)] (261) and a methylenecyclopropane (Scheme 128), has been reported.[‌375‌]

Meeeee 888 Meeeeeeeeee eee Meeeeeeee ee Meeeeeeeeeeeee(MM) Meeeeeeee[‌888‌,‌888‌]

Mee(eeeeeee)eeeeeeee eeeeeeeee ee eeeeee eeee eeee eeee eeeeeeee (eee Meeeeee[‌888‌] M eeeeee eeeeeeeeeeeeeeee eeeeeeeeeeeeee eeeeeee eee eeee eeeeeeeee eeee eeeeeeeeeeeeeeeeee.[‌888‌]

Meeeeeeeeeeee eee ee eeeeeeeeeee ee eeeeeeeeeeeeee eeeeeeee ee e eee(η8-eeeeeeeeeeeeeeee)eeeeeeeeeeeeee eeeeeee eeee e eeeeeeee eeeeeeee (Meeeee 888). Meee eeeeeeeee eeeeeeee eee eeeeeeeee eeeee e eeeeeeeeeeeeee ee e eeeeeeeeeeeeee eeeeeeeee.[‌888‌] Mee eee eeee ee eee eeeeeee ee eee eeeeeeee ee eee MeM eeee ee eee eeeeeeeeeeee ee e eeeeee.

Meeeee 888 Meeeeeeee Meeeeeeee Meeeeeeeeee ee Meeeee ee e Meeeeeee(MM) Meeeeeee[‌888‌]