Page 1. Tetrahedron Letters Vol. 22, pp 815 - 818 @Pergamon Press Ltd. 1981. Printed in Great Britain TRIPHENYLCARBENIUM AND TRIS(P-BROMOPHENYL)AMMONIUMYL ION INDUCED LACTONIZATIONS OF w-BENZYLOXY AND wP-METHOXYBENZYLOXY METHYL ESTERS Thomas R. Hoye* Mark J. Kurth and Vincent Lo Department of Chemistry, University of Minnesota Minneapolis, Minnesota 55455 ...