Preparation of Functionalized Alkylmagnesium Derivatives Using an I/Mg-Exchange.

Functionalized alkylmagnesium reagents bearing an acetal, a ketal, an ester, or a pyridine ring were prepared by an I/Mg-exchange using iPr2Mg·LiCl or ClMg(CH2)5MgCl·2LiCl starting from functionalized primary alkyl iodides.