Page 1. TETRAHEDRON LETI'ERS Pergamon Tetrahedron Letters 40 (1999) 6729-6730 A simple and effective procedure for removal of tri-n-butyltin halides from reaction mixtures ... 3. Pereyre, M.; Quintard, J.-P.; Rahm, A. Tin in Organic Synthesis; Butterworths: London, 1987. ...