Regioselective 5-exo-dig (halo)cyclization of N-propargyloxycarbonyl guanidine derivatives under mild conditions.
Org Biomol Chem
; 22(27): 5585-5590, 2024 Jul 10.
Article
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| MEDLINE
| ID: mdl-38896418
ABSTRACT
A highly regioselective 5-exo-dig cyclization of aromatic N-propargyloxycarbonyl guanidines was developed via an Ag(I)-catalyzed intramolecular hydroamination reaction. This method features a fast reaction rate and mild reaction conditions. Furthermore, it was extended to access halogenated analogues via a one-pot Ag(I)-catalyzed bromocyclization reaction or an I2-mediated iodocyclization reaction with high E/Z selectivity.
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MEDLINE
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Org Biomol Chem
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BIOQUIMICA
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QUIMICA
Año:
2024
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Article