196085-16-2Relevant academic research and scientific papers
A convenient titanium-mediated intermolecular alkyne-carbonate coupling reaction
Wolan, Andrzej,Cadoret, Frédéric,Six, Yvan
supporting information; experimental part, p. 7429 - 7439 (2009/12/06)
A direct diastereoselective titanium-mediated intermolecular coupling of internal alkynes with dialkyl carbonates under Kulinkovich-type reaction conditions is presented. The influence of the structures of the coupling partners on the yields and regioselectivities of this transformation is described.
Zirconium-mediated intramolecular coupling reactions of unsaturated anilines. Diastereoselective synthesis of azetidines
Barluenga, Jose,Sanz, Roberto,Fananas, Francisco J.
, p. 5953 - 5958 (2007/10/03)
Imine complexes of zirconocene, generated by a β-hydrogen abstraction process, which possess a carbon-carbon multiple bond, undergo inter- or intramolecular carbometalation to afford 1,4-cyclohexanediamine or cycloalkylaniline derivatives depending on the relative position of the unsaturated moiety with respect to the imine complex. A new diastereoselective synthesis of azetidines has been developed by treatment of azazirconacyclopentanes with iodine.
