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Palladium catalyzed hydrostannation of alkynes and palladium-catalyzed hydrostannolysis of propargyl or propargyloxycarbonyl derivatives of various functional groups

✍ Scribed by H.X. Zhang; F. Guibé; G. Balavoine

Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
250 KB
Volume
29
Category
Article
ISSN
0040-4039

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✦ Synopsis

PdC12(PPh3) catalyses, under very mild conditions, the cls-hydrostonnation of ocetylenic compounds by trlbutyltin hydride and the hydrostannolytic cleavage of proporgyl carboxylates, phosphates, carbonates and corbamotes. The latter reactlon should find use in protective group chemistry.

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Selective palladium-catalyzed deprotecti
Selective palladium-catalyzed deprotection of the allyl and allyloxycarbonyl groups in phosphate chemistry and in the presence of propargyl and propargyloxycarbonyl groups
✍ H.X. Zhang; F. Guibé; G. Balavoine 📂 Article 📅 1988 🏛 Elsevier Science 🌐 French ⚖ 223 KB

The ally1 group is shown to be orthogonal to the most comnonly used phosphate protecting groups. In some cases, the ally1 and ollyloxycarbonyl groups may be selectively cleaved, under palladium-catalysis, in the presence of the propargyl and proporgyloxycarbonyl groups.