## Abstract The molecular structures of the title compounds 3 and 5 were investigated by NMR and X‐ray structural methods. The NMR results suggest two equivalent halves for both molecules. The X‐ray study shows an approximate mirror plane for 3 and an approximate twofold axis for a significant port
The Synthesis of 1,4-Diaza-2,3;8,9-dibenzo-7,10-dioxacyclododecane-5,12-dione and Its Use in Calcium-Selective Carbon Paste Electrodes
✍ Scribed by Mojtaba Shamsipur; Gholamreza Khayatian; Sayed Yahya Kazemi; Khodabakhsh Niknam; Hashem Sharghi
- Book ID
- 110316120
- Publisher
- Springer Netherlands
- Year
- 2001
- Tongue
- English
- Weight
- 86 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0923-0750
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## Abstract 1,3‐Dichloro‐6,7,8,9,10,12‐hexahydroazepino[2,1‐b][5‐^14^C]quinazoline monohydrochloride (1) was synthesized in 12% overall yield starting from 3,5‐dichloroaniline, and a radiochemical purity of 99.6% was obtained. The synthetic sequence was facilitated by the regio‐controlled preparati