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note
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It is important to point out that the ketosulfone 4 is obtained in most cases as a mixture of epimers at the carbon atom of the sulfonyl group. In other words the product is obtained as a variable mixture of the exo (e.g. i) or endo isomers (e.g. ii). (Formula Presented) The ratio between these two epimers is not dependent on the stereoselectivity of the desymmetrisation reaction and it is not considered in our discussion.
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9
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0009519154
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The absolute configuration given to the polycyclic ketosulfones refers to carbon atom 1 in the Von Baeyer nomenclature rules
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The absolute configuration given to the polycyclic ketosulfones refers to carbon atom 1 in the Von Baeyer nomenclature rules.
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