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Nitrogen bridgehead compounds. Part 71 . Chiroptical properties of 9‐halo derivatives of 6,7,8,9‐tetrahydro‐4 H ‐pyrido[1,2‐ a ]pyrimidin‐4‐one and its 3‐carboxy derivative
Author(s) -
Kajtár Márton,
Kajtár Judit,
Hermecz István,
Breining Tibor,
Mészáros Zoltán
Publication year - 1987
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570240219
Subject(s) - chemistry , chromophore , halo , nitrogen , stereochemistry , cotton effect , circular dichroism , organic chemistry , physics , quantum mechanics , galaxy
Earlier assignments [2] relating to the CD bands of 6,7,8,9‐tetrahydro‐4 H ‐pyrido[1,2‐ a ]pyrimidin‐4‐ones were utilized to explain the chiroptical properties of their 9‐halogenated derivatives. The signs of the most characteristic CD bands proved to be determined by the axial substituents in the benzylic position to the inherently achiral pyrimidinone chromophore.