Article révisé par les pairs
Résumé : The reactivity of a series of tetraalkyltins towards iodine has been determinated. The rate equation has been found to be v=k2. SnR4. I2 and the rate constant is not affected by added I‐. The reaction is an electrophilic substitution at a saturated carbon atom. The following rate constants have been observed: R=CH3, k2=6,81.m−1. sec−1; R=C2H5, k2=0,8; R=nC3H7, k2=0,1; R=nC4H9, k2=0,04. The CH3