Rodríguez-Álvarez S, Palazón JM, Dorta RL. Iron Trichloride-Mediated Cascade Reaction of Aminosugar Derivatives for the Synthesis of Fused Tetrahydroisoquinoline-Tetrahydrofuran Systems.
ACS OMEGA 2022;
7:39061-39070. [PMID:
36340113 PMCID:
PMC9631894 DOI:
10.1021/acsomega.2c04804]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
A method to obtain tetrahydroisoquinolines (THIQs) fused to tetrahydrofuran rings from aminosugar derivatives has been developed. The procedure relies on a key deprotection of benzyl ethers followed by a double-cyclization sequence, using FeCl3 as the sole reagent. This tandem reaction affords the construction of novel fused polycyclic heterocycles with total stereochemical control.
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