TheKnoevenagel reaction of malononitrile with some cyclic ?-ketocarbothionic acid anilides synthesis of cycloalkeno-pyridines and cycloalkeno-thiopyrans
TheKnoevenagel reaction of malononitrile with some cyclic ?-ketocarbothionic acid anilides synthesis of cycloalkeno-pyridines and cycloalkeno-thiopyrans