Beiträge zur Stereochemie der Additionsreaktionen an 3,4,5,6-Tetrahydropyridin-1-oxide. 3. Mitt.: Stereochemie der 1,3-Additionen an alkylsubstituierte 3,4,5,6-Tetrahydropyridin-1-oxide

4-tert-Butyl-3,4,5,6-tetrahydropyridine-1-oxide (1) and 6-Butyl-3,4,5,6-tetrahydropyridine-1-oxide (2) were selected to study the stereochemistry of 1,3-additions (nucleophilic additions) to these unsaturated six membered ring systems. Butylmagnesiumbromide, sodiumboronhydride and potassium cyanide were chosen as reagents. They added axially to1, but yielded mixtures of the two possible stereoisomeres with2.