Tetrahedron Letters,Vol.28,No.49,pp 6109-6112,1987 0040-4039/87 $3.00 + .OO Printed in Great Britain ... MANG~SE(II1) MEiDIATED RADICAL CYCLIZATION. I. FACTORS AFFECTING PHENOL AND CYCLOPENTANONE SYNTHESIS ... John R. Peterson,* Richard S. Egler,l David B. Horsley, and Tamara J. Winter The Michael Faraday Laboratories, Department of Chemistry, Northern Illinois University, DeKalb, Illinois 60115 ... Summary: The oxidative ...