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CP2TiCl2-catalyzed hydroalumination of internal alkynes: an access to (Z)-olefins

✍ Scribed by Arnaud Parenty; Jean-Marc Campagne


Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
75 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis


The reduction of alkynols with LiAlH 4 in diglyme is a long known process leading to the formation of (E)-alkenols. We have, by serendipity, found that, in the presence of a catalytic amount (10%) of Cp 2 TiCl 2 , the stereoselectivity of the reaction is reversed, leading to the selective formation of the (Z)-alkenols. The scope and limitations of this methodology and a postulated catalytic cycle are also discussed.


πŸ“œ SIMILAR VOLUMES


ChemInform Abstract: CP2TiCl2-Catalyzed
✍ Arnaud Parenty; Jean-Marc Campagne πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 30 KB

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