Chemistry. As shown in Scheme I, application of the Batcho-Leimgruber modifications of the Reissert indole synthesis (9-10-11) requires an o-nitrotoluene derivative, 10, bearing an oxygen function at position 4 and a functionality (in this case, carbomethoxy) at position 6, capable of being homologated to an aminoethyl moiety. Terpko and Heckg found that a triethylammonium for-