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Published in 2017 at "RSC Advances"
DOI: 10.1039/c6ra28800f
Abstract: An efficient asymmetric cyclization reaction of amino-acid-derived isothiocyanates with azodicarboxylates is described. The chiral 1,2,4-triazolines are prepared in good yield (up to 87%) and enantioselectivities (up to 95% ee).
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Keywords:
containing chiral;
synthesis enantioenriched;
enantioenriched triazolines;
triazolines containing ... See more keywords
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Published in 2022 at "Chemical communications"
DOI: 10.1039/d1cc07058d
Abstract: A copper-catalyzed enantioselective [3 + 3] cycloaddition of propargyl carbonates and pyrazolones has been disclosed. This reaction provided an efficient route to synthesize pyranopyrazoles containing a chiral quaternary carbon stereocenter in good yields with good…
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Keywords:
carbon stereocenter;
enantioselective cycloaddition;
chiral quaternary;
quaternary carbon ... See more keywords
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Published in 2023 at "Chemical communications"
DOI: 10.1039/d2cc06820f
Abstract: Synergistic palladium/copper catalysis for asymmetric allylic alkylation of vinylethylene carbonates with aldimine esters has been developed for the synthesis of α-quaternary (Z)-trisubstituted allylic amino acids under mild conditions. This methodology features broad substrate compatibilities in…
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Keywords:
quaternary trisubstituted;
amino acids;
catalysis;
allylic amino ... See more keywords