Regioselective demethylation of 2,6-dimethoxybenzaldehydes with magnesium iodide etherate
β Scribed by Seiji Yamaguchi; Masahiro Nedachi; Hajime Yokoyama; Yoshiro Hirai
- Book ID
- 104262193
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- French
- Weight
- 114 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Demethylation of asymmetically substituted 2,6-dimethoxybenzaldehydes with magnesium iodide etherate regioselectively single 6-methoxysalicylaidehydes derived from the more unstable chelation.
π SIMILAR VOLUMES
## Abstract The 2,5βpyridinecarboxamides 9β15 were synthesized in one or two steps from diester 1 by addition of an excess of dimethylaluminium amide or successive addition of two different dimethylaluminium amides with or without intermediate workup. For the carboxamides 16 and 17 this method fail
An Unexpected Product in the Attempted Coupling of Tri-tert-butylbenzoyl Chloride with Magnesium-Magnesium Iodide. -In the synthesis of the desired compound (IV) (yield given in g) an unusual loss of tert-butyl groups is observed to give products (V). -(FREY,