Fungizide Pyridinderivate, 3. Mitt.: Unerwarteter Verlauf nukleophiler Substitutionen an einem Pyridinderivat
摘要:
In the course of substitution reactions for the synthesis of new types of fungicides, 3-(1-phenyl-1,2,2,2-tetrachloroethyl)-pyridine (2 c) showed an unexpected substitution behaviour: amino substituents were introduced into the pyridine ring and not into the side-chain.
Fungizide Pyridinderivate, 2. Mitt.: Derivatisierung von α-Trichlormethyl-3-pyridinmethanol
摘要:
The antifungal lead structure alpha-trichloromethyl-3-pyridinemethanol (1 a) was modified and esters, (thio-)carbamates, and sulfonates as well as other derivatives incorporating the pyridylcarbinol structure were prepared. The optical resolution as well as the N-oxidation of 1 a are described.