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- W2952063312 abstract "[Structure: see text] The asymmetric synthesis of N-propargylamides through Michael addition of the alkynylborane 1 to N-acylimines is reported. The N-acetylimines provide the best substrates for the process exhibiting high selectivity (56-95% ee) with predictable stereochemistry. In several cases, 5 crystallizes in essentially pure form (97-99% ee) and a single-crystal X-ray structure was also obtained for 5g (R1=R2=Me, R3=o-Cl-C6C4). The process regenerates 4 for its direct conversion back to 1 and facilitates the efficient recovery of the pseudoephedrine." @default.
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- W2952063312 date "2006-06-29" @default.
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- W2952063312 title "<i>N</i>-Propargylamides via the Asymmetric Michael Addition of <i>B</i>-Alkynyl-10-TMS-9- borabicyclo[3.3.2]decanes to <i>N</i>-Acylimines" @default.
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- W2952063312 doi "https://doi.org/10.1021/ol0611595" @default.
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