1. E. Müller, Methoden der Organischen Chemie (Houben-Weyl), Thieme, Stuttgart 1954, Bd. VII, Teil 1.
2. The Vilsmeier Reaction of Non-Aromatic Compounds
3. The Vilsmeier Reaction of Non-Aromatic Compounds
4. T. Laird, in Comperhensive Organic Chemistry, ed. by J. F. Stoddart, Pergamon, Frankfurt, 1979, Vol. 1, p. 1114.
5. The Reimer-Tiemann Reaction