Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.002 A Ê R factor = 0.029 wR factor = 0.084 Data-to-parameter ratio = 15.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
✦ LIBER ✦
1,2-dihydro-3, 10-dihydroxycyclobut[b]anthracene-4, 9-dione a key intermediate for 4-demethoxyanthracyclinones
✍ Scribed by Takashi Watabe; Yoshito Takahashi; Masaji Oda
- Book ID
- 108382372
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 234 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
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In the title compound, C 19 H 15 Cl 4 NO 3 , the isoindole unit is planar and the oxazino ring adopts a twist-boat conformation. The dihedral angle between the isoindole unit and the phenyl ring is 50.46 (13) . The molecules are linked via intermolecular O-HÁ Á ÁO hydrogen bonds and weak C-HÁ Á ÁO a