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Substituenteneinflüsse auf die Struktur von 1‐Azaspiropent‐1‐en
Author(s) -
Irngartinger Hermann,
Gries Stefan
Publication year - 1992
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19921251125
Subject(s) - chemistry , substituent , stereochemistry , steric effects , ring (chemistry) , dimer , crystallography , organic chemistry
Substituent Effects on the Structure of 1‐Azaspiropent‐1‐ene Low‐temperature (199 K) X‐ray structure analyses of the azaspiropentene 1 and its dimer 2 have been undertaken. The peripheral bonds of 1 (C–C 1.544, C=N 1.278 Å) are elongated because of steric strain and conjugation with the phenyl ring (for C=N). The distal bond (C–C 1.485 Å) in the three‐membered ring of 2 is shortened by the substituent effects of the N=C and C=N groups.
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