Regioselective anodic fluorination of cyclic ethers, lactones, and a cyclic carbonate in Et 4 NFโขnHF (n=4, 5) and Et 3 Nโข5HF without a solvent was successfully carried out to give the corresponding monofluorinated products in moderate yields. This is the first report of direct electrochemical fluori
Highly Regioselective Cleavages and Iodinations of Cyclic Ethers Utilizing SmI2.
โ Scribed by Doo Won Kwon; Yong Hae Kim; Kieseung Lee
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 164 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
It was established that exclusively high regioselective C O bond cleavage of 7-oxabicyclo[2.2.1]heptane skeletons, which are unique Diels-Alder products of furans, under mild conditions using samarium(II) iodide and samarium powder yields cyclohexanol derivatives or aromatic compounds.
a-Bromocyclicacetals, a-bromocyclicketals and a-bromocyclicthioketals, derived from cyclic and acyclic ketones and aldehydes, reacted with samarium diiodide at -78ยฐC in THF to furnish the corresponding enol ethers or thioenol ethers containing hydroxy or thiol moieties in high yields.