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- W2951409413 startingPage "423" @default.
- W2951409413 abstract "Organoselenium compounds are important tools in the field of synthetic chemistry because their specific reactivities have been used as the key reactions in the synthesis of various organic compounds. Nucleophilic organoselenium reagents are frequently utilized to introduce a selenium atom into organic molecules. However, there is no method available for the direct transformation of a hydroxy group into a selenanyl group, except for the Grieco-Nishizawa reaction. In this review, novel methods for the conversion of alcohols into selenides in one step are described: both selenolate-aluminum chloride and TMSSePh-aluminum bromide are effective reagent systems for this transformation. Although benzylic alcohols could be efficiently converted to the corresponding selenides, these reagent systems were not applicable to non-benzylic alcohols. On the other hand, the reaction of cinnamyl alcohol with TMSSePh-aluminum bromide afforded 4-phenylselenochroman as a main product. The scope and limitations of this selenochroman formation were investigated using several types of allyl alcohols. To clarify the reaction path, the reaction of cinnamyl phenyl selenide with aluminum bromide was carried out. As expected, 4-phenylselenochroman was obtained in high yield. The transformation of various cinnamyl selenides was also successful in generating the corresponding selenochroman derivatives. Consequently, we developed a novel method for selenochroman synthesis." @default.
- W2951409413 created "2019-06-27" @default.
- W2951409413 creator A5007193204 @default.
- W2951409413 date "2003-01-01" @default.
- W2951409413 modified "2023-09-27" @default.
- W2951409413 title "Novel Reactions Using Organoselenium Compounds" @default.
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- W2951409413 doi "https://doi.org/10.1248/yakushi.123.423" @default.
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