Direct preparation of 3,4-dichloro-2,-dimethyl-3-chromenes from 2,2-dimethyl-4-chromanones
✍ Scribed by F. Campa; J. Coll; A. Messeguer; M.A. Pericás
- Book ID
- 104246555
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- French
- Weight
- 122 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0040-4039
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
The reaction of dimethyl 2-methyl-and dimethyl 2-phenyl-4-oxo-4H-chromen-3-yl-phosphonate with various aliphatic and aromatic amines was investigated. A novel class of cyclic phosphonic analogues of ehromone, 1 (2-methoxy-3-[l-(alkylamino)ethylidene or benzylidene]-2,3-dihydro-2,4-dioxo-2~.%benzo[e]