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Please login to access the full content or check if you have access via2.10.7.7 Method 7: Bis(isopropoxy)titanium(IV)–Propargyl or –Allenyl Complexes by Reaction of Low-Valent Titanium Complexes with Propargyl Halides, Acetates, Carbonates, Phosphates, or Sulfonates
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Mikami, K.; Matsumoto, Y.; Shiono, T., Science of Synthesis, (2003) 2, 527.
The divalent titanium complexes prepared from [Ti(OiPr)4] or [TiCl(OiPr)3] and 2 equivalents of isopropylmagnesium bromide with propargyl alcohol derivatives give titanium–propargyl complexes 146 or titanium–allenyl complexes 147 (Scheme 74).[282] This method is practical for the preparation of a variety of propargyl- or allenyltitanium complexes. Like allyltitanium complex 144 (Scheme 71, Section 2.10.7.5), complexes 148 prepared from 1-(alk-1-ynyl)cyclopropyl carbonates react with aldehydes at the less-substituted carbon (Scheme 74).[278]
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References
| [278] | Meeeeeee, M.; Meee, M., Meeee. Meee., (8888) 888, 8888; Meeee. Meee. Mee., Me. Meee., (8888) 88, 8888. |
| [282] | Meeeeeee, M.; Meeeeeee, M.; Meee, M., Meeeeeeeeee Meee., (8888) 88, 8888. |
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