M. Zablocka et al., ZIRCONAINDANE PHOSPHOLANES - KEY REAGENTS FOR THE SYNTHESIS OF MONOCYCLIC OR TRICYCLIC PHOSPHANES AND RELATED SPECIES, Chemical communications, (13), 1997, pp. 1239-1240
The zirconaindane phospholane 3 reacts either with PhSbCl2 or Me2SnCl2
to give tricyclic systems incorporating phosphorus, antimony or tin;
the same reaction involving 3 and R2PCl (R = Ph, Et) leads to acyclic-
cyclic diphosphanes.