4,8-Dihydroxy-2-methyl-1,2,3,4-tetrahydroisoquinolinium chloride monohydrate
✍ Scribed by Yathirajan, H. S. ;Mayekar, Anil N. ;Sarojini, B. K. ;Narayana, B. ;Bolte, Michael
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 399 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Geometric parameters of the title compound, C 10 H 14 NO 2 + Á-Cl À ÁH 2 O, are in the usual ranges. The tetrahydropyridine ring adopts a half-chair conformation with the methyl group in an equatorial and the hydroxy group in an axial position. The crystal packing is stabilized by O-HÁ Á ÁO, O-HÁ Á ÁCl and N-HÁ Á ÁCl hydrogen bonds. The absolute configurations of both chiral centres have been determined to be R.
📜 SIMILAR VOLUMES
In the title compound, C 9 H 10 N 4 O 4 ÁH 2 O, the triazole ring is nearly planar. The 1,3-dioxane-4,6-dione ring exhibits a halfchair conformation. Two intramolecular N-HÁ Á ÁÁO hydrogen bonds, with OÁ Á ÁH distances of 2.23 (2) and 1.99 (2) A ˚, and two intermolecular O-HÁ Á ÁÁN hydrogen bonds, w
The title compound, C 10 H 8 FN 5 OÁH 2 O, was synthesized by the reaction of (1H-1,2,4-triazol-3-yl)hydrazine with 4-fluorobenzaldehyde in ethanol. The molecule is almost planar and in the crystal structure screw-related molecules are linked by N-HÁ Á ÁO and N-HÁ Á ÁN hydrogen bonds to form chains
In the title compound, C 11 H 14 N 4 OSÁH 2 O, the dihedral angle between the ethoxybenzene group and the triazole ring is 48.20 (8) . Intermolecular N-HÁ Á ÁO and O-HÁ Á ÁN hydrogen bonds involving the water molecules form a chain along the a axis.
The title compound, C~11~H~16~N~2~ ^2+^·2Cl^−^·H~2~O, is a novel conformationally constrained tricyclic analogue of nicotine, in which the pyridine and pyrrolidine rings of the latter are bridged by a CH~2~ group. As result of this bridge, these two rings are no longer approximately perpendicular as