Displacement of the methoxy-benzoyl group in the nitration of di-methoxy-benzophenones
✍ Scribed by C. W. Pohlmann
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 708 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0165-0513
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## Abstract A methoxy group in 1,2, 3‐trimethoxybenzenes can be readily displaced by a butyl group via reaction with butyllithium in hexane. The reaction probably proceeds via an addition‐elimination mechanism. There appears to be a qualitative relation between the coefficient of the LUMO at the ce
## Abstract The methoxy group conformation of chromone derivatives was studied by ^1^H NMR methods. For the qualitative determination of the conformational preferences of the model compounds, proton relaxation rates, spin‐spin decoupling difference spectroscopy and 2D COSY experiments were applied.
Strontium iodide was prepared from strontium metal and ammonium iodide in liquid ammonia and crystallized as the dimethoxyethane adduct, namely tris(1,2-dimethoxyethane-2 O,O 0 )diiodostrontium(II), [SrI 2 (C 4 H 10 O 2 ) 3 ]. High purity and crystallinity, solubility, and ease of preparation are ch