3563
J . Am. Chem. SOC.1983, 105, 3563-3567 The reactions were usually followed for 5 half-life times; the end point obtained after increasing the temperature for some time was 95-100% in most cases, if compared to the calculated end point on the basis of curves calibrated with TsOH. The recorded data were analyzed with suitable computer programs, indicating no deviation from fist-order kineics (see supplementary material). The alcohols used as solvents contained