By conductivity measurements, it has been shown that HCl, HBr and HI undergo addition to propanone and propanal to give gem-halogenohydrins. Chlorohydrins have been detected when HCl combined with aldehydes that do not undergo keto-enol tautomerism and 1, 2, 2, 2-tetrachlorethanol has been identified when HCl combines with trichloroethanal (chloral). The formation of gem-chlorohydrins has been reported in the enzymic degradation of ...
