- Preparation of aryl-substituted E-homoallylic bromides from cyclopropylcarbinol and PBr3
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An expeditious synthesis of aryl substituted E-homoallylic bromides has been accomplished by the cleavage of cyclopropylcarbinols with phosphorus tribromide. Copyright Taylor & Francis Group, LLC.
- Roy, Sanchita,Guha, Sharmistha,Kumar Dutta, Samit,Bhar, Sanjay
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p. 1919 - 1922
(2007/10/03)
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- The thionophosphate-thiolophosphate photoisomerization proceeds predominantly through a non-chain radical pathway. Synthetically viable benzylation of tetrahydrofuran, propan-2-ol and olefins
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The photoirradiation of thionophosphates, ROP(S)(OEt)2, derived from benzyl and vinylogously benzyl alcohols in CH3CN, with a Hanovia medium-pressure mercury lamp in a quartz vessel leads to the formation of the corresponding thiolophosphates, RSP(O)(OEt)2, through a non-chain radical pathway. This behavior of thionophosphates is unlike that of the related phosphates, which react through ionic dissociation-recombination processes. When the irradiation is conducted in solvents such as PriOH, THF and toluene, benzylation of these solvents takes place in synthetically respectable yields. Irradiation of thionophosphates in CH3CN leads to a convenient allylic benzylation of olefins.
- Yadav, Veejendra K.,Balamurugan, Rengarajan,Parvez, Masood,Yamdagni, Raghav
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p. 323 - 332
(2007/10/03)
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- Hypersensitive radical probe studies of Gif oxidations
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Hypersensitive probes were employed in mechanistic studies of Gif oxidations. The results indicate that, unlike the case in enzyme catalyzed hydroxylation reactions, diffusively free radicals are formed in Gif oxidations of these substrates.
- Newcomb, Martin,Simakov, Pavel A.,Park, Seung-Un
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p. 819 - 822
(2007/10/03)
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