Neighbouring effect in the course of the ozonolysis of a hindered bornene derivative
✍ Scribed by Céline Reynaud; Michel Giorgi; Henri Doucet; Maurice Santelli
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- French
- Weight
- 393 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
In the course of the ozonolysis of the bicyclo[2.2.1]heptene anhydride 1, the three bis-lactones 3-5 have been obtained (the structures were confirmed by X-ray crystallographic analysis).
📜 SIMILAR VOLUMES
The ozonolysis of ci. ~-3,4a,7,7a-tetrahydro-3,3-dimethyl-6,7a-diphenyl~yclopenta[l,2-e][l,2,4]trioxine (1) in CH2C1, at -78" gave the secondary endo ozonide 2 (43 % yield) and an acetal 3 (27% yield) derived from 0insertion at the orthu position of the C(7a) phenyl substituent. Both structures were
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## Given an n-dimensional point-lattice A c [w" and a bounded set A c KY, the set S(A) of nonzero lattice points ueA such that A n (A + u) # f~ is called the set of neighbours of A in ,4. In the paper a disjoint decomposition of S(A) is showed which gives a representation of the cardinality N(A) o