abstract |
The reaction of dimethylformamide, R'R 2 R 3 SiX and RY in the presence of zinc, or of dimethylformamide, R 1 R 2 R 3 SiX and a zinc compound RZnY ยท yL gives semi-aminals of the formula I. R means, for example, polyhalogenated alkyl having at least one F atom; R ', R 2 and R 3 represent , for example, alkyl; L is a ligand; X is Cl or Br; Y is Cl, Br or J and y is 1 or 2. |