Title of article
Crystal structures of ten enantiopure Schiff bases bearing a naphthyl group
Author/Authors
ndez Tellez , Guadalupe Herna Laboratorio de Síntesis de Complejos - Facultad de Ciencias Químicas - Universidad Autónoma de Puebla, Mexico , Moreno, Gloria E. Laboratorio de Síntesis de Complejos - Facultad de Ciencias Químicas - Universidad Autónoma de Puebla, Mexico , Mendoza, Angel Centro de Química - Instituto de Ciencias - Benemérita Universidad Autónoma de Puebla, Mexico Ciudad Universitaria, Mexico , Sharma, Pankaj dInstituto de Química, Universidad Nacional Autónoma de México - Circuito Exterior s/n - Ciudad Universitaria, Mexico , Portillo, Oscar Centro de Química - Instituto de Ciencias - Benemérita Universidad Autónoma de Puebla, Mexico , Sharma, Pankaj Laboratorio de Síntesis de Complejos - Facultad de Ciencias Químicas - Universidad Autónoma de Puebla, Mexico , Gutiérreza, René Laboratorio de Síntesis de Complejos - Facultad de Ciencias Químicas - Universidad Autónoma de Puebla, Mexico
Pages
64
From page
1
To page
64
Abstract
Using a general solvent-free procedure for the synthesis of chiral Schiff bases, the following compounds were synthesized and their crystal structures determined: (S)-(+)-2-{[(1-phenylethyl)imino]methyl}naphthalene, C19H17N, (1), (S)-(+)-2-({[(4-methylphenyl)ethyl]imino}methyl)naphthalene, C20H19N, (2), (R)-(−)-2-({[(4-methoxylphenyl)ethyl]imino}methyl)naphthalene, C20H19NO, (3), (R)-(−)-2-({[(4-fluorophenyl)ethyl]imino}methyl)naphthalene, C19H16FN, (4), (S)-(+)-2-({[(4-chlorophenyl)ethyl]imino}methyl)naphthalene, C19H16ClN, (5), (S)-(+)-2-({[(4-bromophenyl)ethyl]imino}methyl)naphthalene, C19H16BrN, (6), (S)-(+)-2-({[1-(naphthalen-1-yl)ethyl]imino}methyl)naphthalene, C23H19N, (7), (S)-(+)-2-{[(1-cyclohexylethyl)imino]methyl}naphthalene, C19H23N, (8), (S)-(−)-2-{[(1,2,3,4-tetrahydronaphthalen-1-yl)imino]methyl}naphthalene, C21H19N, (9), and (+)-2-({[(1S,2S,3S,5R)-2,6,6-trimethylbicyclo[3.1.1]hept-3-yl]imino}methyl}naphthalene, C21H25N, (10). The moiety provided by the amine generates conformational flexibility for these imines. In the crystals, no strong intermolecular contacts are observed, in spite of the presence of aromatic groups
Keywords
crystal structure , chiral compounds , Schiff base , naphthyl , imine
Journal title
Acta Crystallographica Section E: Crystallographic Communications
Serial Year
2016
Record number
2617772
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