Efficient synthesis of B-alkylated oxazaborolidines derived from ephedrine and norephedrine |
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| Authors: | Ortiz-Marciales Margarita González Eduvigis De Jesús Melvin Espinosa Sandraliz Correa Wildeliz Martínez Johanna Figueroa Ruth |
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| Affiliation: | Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA. mr_ortiz@webmail.uprh.edu |
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| Abstract: | [reaction: see text] Representative B-butyl- and B-methyl-1,3,2-oxazaborolidines derived from ephedrine and norephedrine were prepared in good yield and excellent purity by one-pot treatment of B-H oxazaborolidines with the corresponding organolithium reagent and subsequent hydrolysis of the cyclic borohydride intermediate with anhydrous ammonium chloride. |
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