Electron addition to 5-bromo-5-nitro-1,3-dioxanes
✍ Scribed by Martyn C.R. Symons; René Beugelmans; W.Russell Bowman; André Lechevalier
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 268 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0040-4039
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Electron impact-induced fragmentations of 2-substituted 5,5-bis(carboethoxy)l,3-dioxanes were studied by exact mass measurements and metastable ion analysis. The substituent R on C(2) of the heterocyclic ring has little influence on the principal cleavage reactions. Elimination of CH,O/CO and C,H,O/
In the title compound, C 19 H 13 Br 2 NO 4 S 2 , the two bromothienyl rings have different orientations with respect to the carbonyl groups. The nitro group is almost coplanar with the benzene ring to which it is attached.
Single-crystal X-ray study T = 300 K Mean '(C±C) = 0.012 A Ê R factor = 0.054 wR factor = 0.099 Data-to-parameter ratio = 13.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.