Abstract
The title compound, C23H23NO, is the product of a tandem transformation of the double Mannich base bis(1-oxo-1,2,3,4-tertrahydro-2-naphthoylmethyl)amine hydrochloride in HBr solution upon heating. The tetrahydropyridine ring has a non-symmetrical half-chair conformation, whereas the cyclohexadiene and cyclohexene rings adopt non-symmetrical half-boat conformations. The dihedral angle between the planes of the terminal benzene rings is 62.85 (6)°. The N atom has a trigonal–pyramidal geometry [sum of the bond angles = 332.4 (3)°]. In the crystal, molecules form [001] chains via weak non-classical C—H⋯N hydrogen bonds. The chains are stacked along the b axis.
Highlights
Crystal data3-Methyl-1,2,3,4,5,6,10 ,20 ,30 ,40 -decahydrospiro[benz[f]isoquinoline-1,20 naphthalen]-10 -one
The chains are stacked along the b axis
The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry
Summary
3-Methyl-1,2,3,4,5,6,10 ,20 ,30 ,40 -decahydrospiro[benz[f]isoquinoline-1,20 naphthalen]-10 -one.
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