... COMMUN., 1987 1053 Secondary Mannich Bases via Trimethylsilyl Trifluoromethanesulphonate Promoted Addition of Silyl Enol Ethers to Schiff Bases RA Pilli" and D. Russowsky Universidade Estadual de Campinas, lnstituto de Quimica, CP 6154, 13081 Campinas, SP - Brazil ... Spectral and elemental analytical data are in accordance with the proposed Not corrected. d Yields based on chromatographed material. Published on 01 January 1987. ...