Premium
Enamine und Amide 3‐substituierter Pyridinderivate
Author(s) -
Naef K. M.,
Schaltegger H.
Publication year - 1962
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19620450331
Subject(s) - chemistry , enamine , amide , medicinal chemistry , organic chemistry , catalysis
Tertiary enamines of β‐(3‐pyridyl)‐β‐oxo‐propionic ester, not attainable by the normal route, are prepared using β‐(3‐pyridyl)‐β‐chloro‐acrylic ester as an intermediate. The direct reaction of β‐(3‐pyridyl)‐β‐oxo‐propionic ester with secondary amines yields the corresponding β‐keto‐amines. 3‐(1‐Chlorovinyl)‐pyridin by reaction with piperidin yields no enamine but 1‐(3‐pyridyl)‐1,2‐dipiperidino‐ethane.