Unsymmetrically Substituted Phthalocyanine Derivatives via a Modified Ring Enlargement Reaction of Unsubstituted Subphthalocyanine
โ Scribed by Weitemeyer, A.; Kliesch, H.; Woehrle, D.
- Book ID
- 120821725
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 576 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0022-3263
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๐ SIMILAR VOLUMES
In the presence of excess Bu2BOTf to promote anti-selectivity, an asymmetric aldol reaction with a homochiral terpenoid-derived 1,3-oxazin-2-one as the chiral control element results unexpectedly in ring cleavage by an intramolecular process to form a N-substituted tetrahydro-l,3oxazine-2,4-dione in
## Abstract magnified image 3โIminoโ2โaminoโisatines were obtained by a oneโpot reaction of an excess of aniline (or its derivatives) with 1,2โbis(dimethylamino)โ1,2โdichloroโethene (prepared __in situ__ from DMF). Subsequent hydrolysis yielded the corresponding isatine derivatives in reasonable t