Obtention d'organochlorogermylamines stabilisees par un substituant organique chelatant: le 3-amino 2-methylthiophoate

Article abstract of DOI:10.1016/0022-328X(91)86138-G

The use of 3-amino 2-methylthiophoate allows the formation of stabilized organohalogermylamines. 3-Organochlorogermylamino 2-methylthiophoates were synthesized either by intermolecular dehydrochlorination between chlorogermanes and the amino-thiophoate in the presence of DBU or by reaction of chlorogermanes with the corresponding thiophoate lithium amide.A probable complexation between the carbonyl group of the ester function with the electrophilic germanium center is supported by spectroscopic data (IR, UV temperature 1H NMR) and can explain the enhanced reactivity of the Ge-Cl bond which allows easy synthesis of sterically hindered bis (3-amino-2-methyl thiophoates)-diorganogermanes.