The formation of 4-(2', 3',4'-trim.ethoxyphenyl)-5-methyltropone from the pallacium catalysed ring opening--oxidation of 7-methylenebicyclo[4.l.O]heptane is described. 6e have recently shown that the chloropalladation of la affords a mixture of cycloheptyl x-aliyl complexes 2a and 2b.-a Furthermore,
Reactivity of (3-chloro-2-methylenecycloalkyl)palladium chloride dimers: pd-allyl cleavage, synthesis of (±)-13-methyltridecanolide.
✍ Scribed by William A. Donaldson; Barbara S. Taylor
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- French
- Weight
- 250 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The reactions of the title compounds under cleavage conditions affords the corresponding cycloalkenes as the major product. This methodology was used in the synthesis of 13-methyltridecanolide from cyclododecene. The chloropalladation of Q-methylenebicyclo[n.l.O]alkanes (1) quantitatively affords crystalline, air-stable (3-chloro-Z-methylenecycloalkyl)palladium chloride dimers (2, eqn. 1). 192 Compounds 1 may be prepared from the corresponding cyclic olefins 3 in good yield, based on
📜 SIMILAR VOLUMES
The title compounds undergo reaction with one and two equivalents of malonate anion in the presence of phosphine ligands to afford mono-and di-substituted products. A mechanism for the formation of both products is presented. We' and others' have recently shown that the chloropalladation of Q-methy