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Crystal and molecular structure of 7‐[1‐(2‐carbomethoxyanilino)‐1‐(phenyl)‐methyl]‐quinolin‐8‐ol(CMAB‐Oxine) and comparising consideration to CMAP‐Oxine
Author(s) -
Rericha A.,
Seidel I.,
Röbisch G.
Publication year - 1990
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170250914
Subject(s) - chemistry , ring (chemistry) , molecule , intermolecular force , selectivity , stereochemistry , crystal structure , electrophile , aldehyde , crystallography , organic chemistry , catalysis
C 24 H 20 N 2 O 3 , Pbc2 1 , a = 11.338(4), b = 7.786(3), c = 44.381(6) Å, D x = 1.29 Mg · m −3 , V = 3.82053 · 10 −27 m 3 . There are eight molecules in the unit cell (two molecules, A and B, in the asymmetric unit). The substitution of N (CMAP‐Oxine) by CH(CMAB‐Oxine) in the aldehyde participant of reactants creates differences both in intermolecular contacts and orientation phenomenons of ring planes. A high degree of selectivity of the substitution position for both compounds is given. The reactions to the synthesis of both compounds are difficult to agree upon with the characteristic feature of the Mannichreaction and corresponded more to the character of the electrophilic substitution of aromatics.