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Use of alkyl 2,4,6-triisopropylbenzoates in the asymmetric homologation of challenging boronic esters. | LitMetric

(-)-Sparteine induced lithiation of primary 2,4,6-triisopropylbenzoates and subsequent homologation of boronic esters is reported. A comparative study with lithiated N,N-diisopropylcarbamates has demonstrated the superiority of the hindered benzoate.

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http://dx.doi.org/10.1039/c1cc14469cDOI Listing

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