Reactivity of <Emphasis Type="Italic">N</Emphasis>-(chlorodimethylgermyl)methyl and <Emphasis Type="Italic">N</Emphasis>-(chlorodimethylsilyl)methyl derivatives of lactams and amides toward Grignard reagents

N-(Chlorodimethylgermyl)methyl]lactams and -amides containing a five-coordinate germanium atom react with Grignard reagents chemoselectively by the Ge-Cl bond to form four-coordinate germanium compounds. The method of competitive reactions was used to establish that respective five-coordinate germanium and silicon compounds are almost equally reactive toward Grignard reagents but much more reactive than model four-coordinate germanium and silicon compounds.Translated from Zhurnal Obshchei Khimii, Vol. 74, No. 9, 2004, pp. 1462–1465.Original Russian Text Copyright © 2004 by Bylikin, Shipov, Kramarova, Artamkina, Negrebetskii, Baukov.This revised version was published online in April 2005 with a corrected cover date.