... THE 6,3-BENZOTELLURAZOLE : A NW HETEROCYCLIC SYSTE!~! !lusanp,u XBUYI, ?!ichel EVERS, Cuy TIHANCE, Andre' LLJXEN and Li;on CtlRISTIAENS* ... Acknowledgments This work is a part of the Ph.D. of Musangu MBUYI who gratefully thanks the ACCG for a fellowship which allowed the realization of his thesis. ... 4. G. ROSIN1 and A. MEDICI, Synthesis (1977), 892. 5. A. LUXEN and L. CHRISTIAENS, Tetrahedron Letters, 1982 , 3, 3905 ...