1: cis-2,10-dimethyl-lt;1,2,3gt;benzothiadiphosphololt;2,3-bgt;lt;1,2,3gt;benzothiadiphosphole; Bromure de phenyl magnesium in tetrahydrofuran 0.0833333 h; 2: vinyl-magnesium bromide in tetrahydrofuran

lithium aluminium tetrahydride in diethyl ether T=20°C; Further byproducts given. Title compound not separated from byproducts;

in benzene-d6 dissolved in C6D6; crystals were obtained after several weeks in a sealed tube, NMR;

1: (i) Li, (ii) /BRN= 742985/ 2: aq. H2O2 View Scheme