| 摘要 |
<p>1,2-Dihydro pyridine derivs. of formula (I), in which R is 1-4C alkyl are made by reacting an aldehyde of formula (II) with a malonitrile of formula (III) in methanol, ethanol, tetrahydrofurane or their mixts. at from 20 deg.C to b.pt., and removal of solvent by distn.</p> |
