- Selective alkyl ether cleavage by cationic bis(phosphine)iridium complexes
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Catalysts capable of heterolytic silane activation have been successfully applied to the conversion of alkyl ethers to silyl ethers via C-O bond cleavage. The previously-reported cationic pincer-supported iridium complex for this transformation suffers fr
- Jones, Caleb A. H.,Schley, Nathan D.
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supporting information
p. 1744 - 1748
(2019/02/20)
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- An efficient radical procedure for the halogenation and chalcogenation of B-alkylcatecholboranes
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An efficient formal anti-Markovnikov addition of HX (X = Cl, Br, I, SR and SeR) to olefins under mild reaction conditionsisdes cribed. The procedure isbas ed on the hydroboration of alkeneswith catecholborane. The conversion of the intermediate B-alkylcatecholboranesto the corresponding halides, sulfides and selenides is based on a common process, i.e., generation of a radical from the alkylborane followed by abstraction of a heteroatom from an aromatic sulfonyl reagent. The efficiency of these radical reactionsis remarkable. The mildness of the reaction conditions is well illustrated by the preparation of iodoalkanes. Despite the notorious reactivity of iodoalkanes under radical reaction conditions, no product degradation wasobs erved.
- Schaffner, Arnaud-Pierre,Montermini, Florian,Pozzi, Davide,Darmency, Vincent,Scanlan, Eoin Martin,Renaud, Philippe
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supporting information; experimental part
p. 1163 - 1167
(2009/06/05)
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- AlCl3-N,N-Dimethylaniline: A Novel Benzyl and Allyl Ether Cleavage Reagent
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A combination system of AlCl3-N,N-dimethylaniline was found to cleave benzyl ethers readily to give parent alcohols in excellent yields.The system also cleaved allyl as well as methyl ethers.Numerous functional groups such as benzoyloxy, phenylthio, and olefinic double bond were not affected.Comparison of AlCl3-N,N-dimethylaniline and AlCl3-anisole were described.
- Akiyama, Takahiko,Hirofuji, Hajimu,Ozaki, Shoichiro
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p. 1932 - 1938
(2007/10/02)
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