Synthèses de dioxolannes α-iodés Daubié, Christophe; Bacquet-Einhorn, Cathy; Lelandais, Daniel
Canadian journal of chemistry,
08/1984, Letnik:
62, Številka:
8
Journal Article
Recenzirano
Three methods of iodination of cyclic ketals are described. Direct iodination by monoiodine chloride in ether leads to very good yields in monoiodo compounds. A high selectivity is obtained when one ...of the α-carbon atoms is tertiary.
The electrochemical reduction of α-iodinated dioxolanes leads to the preparation of a series of symmetrical and non-symmetrical γ-bisdioxolanes. Journal translation
Postsplenectomy sepsis, although infrequent, is real and hazardous. We have taken a nonoperative approach to the child with a ruptured spleen who is in stable condition. Six consecutive patients with ...a diagnosis confirmed by angiography or scan were treated without surgery. The results suggest the usefulness of this approach in the child who is not bleeding massively.
The electrochemical reduction of α-iodinated dioxolanes leads to the preparation of a series of symmetrical and non-symmetrical γ-bisdioxolanes. Journal translation
Anodic oxidation of carboxylic acids with β-dioxolane substituents leads to good yields of symmetrical γ-bisdioxolanes. Hydrolysis of these compounds easily provides the corresponding γ-diketones. ...The synthesis of the starting acids is described. Journal translation
Anodic oxidation of carboxylic acids with β-dioxolane substituents leads to good yields of symmetrical γ-bisdioxolanes. Hydrolysis of these compounds easily provides the corresponding γ-diketones. ...The synthesis of the starting acids is described. Journal translation
Remote-control gambling raises the risk that large sums could -- often anonymously -- be moved off the mainland despite a $50,000 annual limit on such transfers by individuals. Last year, Philippine ...casinos reported $27 billion in bets from high rollers. Phone wagering, also known as proxy betting, has grown to account for as much as 85% of business at some VIP rooms, according to people familiar with the operations, who asked not to be identified as they're not authorized to speak publicly. The casinos' fast-growing operations are raising the risks of money laundering, according to a US government report in March. And Philippine gambling operations are causing concern in China, where authorities have sought to halt billions of dollars in outflows that have pushed down the value of the currency and drained capital reserves. The Philippine government is aware of the money-laundering risk posed by proxy betting, according to Andrea Domingo, chairman and CEO of Pagcor.
