... Printed in Great Britain 01983 Pergamon Press Ltd. I,5-DIAZABICYCLO(4.3.0~ NONANE, THE OXIDATION PRODUCT OF SPERYINE SJ Croker, RST Loeffler* and TA Smith Long Ashton Research Station, University of Bristol, Bristol BS18 9AF, UK ... 2647 (1975). This has been found to be an effective general method for preparing such bicyclic diamines RW Alder, P. Eastment, RE Moss, RB Sessions and MA Stringfellow, Tetrahedron E., 23, 4181 (1982). ...