The first example of asymmetric cyclization-carbonylation of 2-propargyl-1,3-dione 1 catalyzed by palladium(II) with chiral bisoxazolines (C.H.-BOX) was investigated. The use of bulky alcohols increased the ee of the products 2. The product 2d was converted into bicyclic enones 7 and 8, a useful int
Cyclization of 2,2-dimethylcyclopentane-1,3-dione monophenylhydeazone
β Scribed by S. N. Dashkevich
- Book ID
- 112380287
- Publisher
- Springer US
- Year
- 1978
- Tongue
- English
- Weight
- 70 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0009-3122
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π SIMILAR VOLUMES
The title compound, C~17~H~10~N~2~O~4~, consists of two phthalimide units connected by a methylene bridge. The NβCβN bond angle is 110.64β (12)Β°. In the crystal structure, the dihedral angle between the two phthalimide units in one molecule is 88.96β (2)Β°. The crystal packing is stabilized by the ΟβΟ
The title molecule, C~24~H~26~N~2~O~2~, has its central C=C double bond placed on an inversion centre, and both indolin-2-one units are coplanar. The three terminal C atoms of the two butyl groups are disordered over two positions; the site occupancy factors are __ca__. 0.54 and 0.46. The central C=