Thermochimica acta

Thermal stability and kinetics of ylide-borane complexes

JM Stoddard, KJ Shea

Index: Stoddard, Jonathan M.; Shea, Kenneth J. Thermochimica Acta, 2004 , vol. 424, # 1-2 p. 149 - 155

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Citation Number: 6

Abstract

Complexes of dimethylsulfoxonium methylide (1) and organoboranes are crystalline for ylide· BH3 (2), ylide· BPh3 (3), ylide· B (C6F5) 3 (4), and ylide· BF3 (5). These complexes undergo exothermic rearrangement by 1, 2-migration upon heating to produce homologated organoboranes and dimethylsulfoxide. Non-isothermal kinetic analysis of the differential scanning calorimetry (DSC) data for ylide· BPh3 (3) and ylide· B (C6F5) 3 (4) complexes ...