Tcbokdmt Vol. SO. No. 16. pp. 4897404.1994 copyTi@t~1994EheviLTscicnccL4d Printed in Onrt Brith. A8 tights -al oo40420/94 s6.aho.00 ... Directed Ortho Metalations of Tertiary Benzamides Using Lactones as Electrophiles ... Timothy J. Brenstrum, Margaret A. Brimble* and Ralph J. Stevenson ... Department of Chemistry, University of Auckland, Private Bag 92019, Auckland, New Zealand ... Absbwct : Directed onho me&lath of oxygenated terth'y ...