2,3,6,7-1H,5H-Tetrahydro-10-methylquinolizino[1,9a,9-gh][1,4]benzoxazin[2]one
β Scribed by Chinnakali, K. ;Sivakumar, K. ;Natarajan, S.
- Book ID
- 114506887
- Publisher
- International Union of Crystallography
- Year
- 1990
- Tongue
- English
- Weight
- 342 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0108-2701
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## Abstract magnified image Efficient syntheses of the title ring systems have been developed from 1__H__βindoleβ2βbutanoic acid, which was easily prepared from 2βfluoroβ1βnitrobenzene in four steps. Heating 1__H__βindoleβ2βbutanoic acid in toluene containing __p__βtoluenesulfonic acid at 110Β°C fu
The title compound, C 23 H 25 BrO 3 , was synthesized by the reaction of p-bromobenzaldehyde with dimedone and HClO 4 / SiO 2 in EtOH. In the molecule, the dihydropyran ring adopts a boat conformation and the two cyclohexene rings are in a trans conformation.