Intercepted-Knoevenagel condensation for the synthesis of unsymmetrical fused-tricyclic 4H-pyrans

Shearer, Charles M.; Desaunay, Oriane; Zorc, Stephen; Richaud, Alexis; Samanta, Shyam S.; Jeedimalla, Nagalakshmi; Roche, Stéphane

doi:10.1016/j.tet.2019.130606

Cited by 8 publications

(2 citation statements)

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“…This is followed by the in situ reaction of tetronic acid (1) with intermediate A, without separation, to obtain the fusedtricyclic target compounds (24). 49 Maddila et al, developed an efficient, environmentally friendly, multi-component method for the synthesis of furo[3,4b]chromenes (33) using yttria-doped hydroxyapatite (Y 2 O 3 /HAp) as a heterogeneous and recyclable catalyst (Scheme 19). This synthetic method involves a sequential Knoevenagel condensation, which is a type of 1,3-dipolar reaction.…”

Section: Furo[34-b]chromene-15(6h)-dionementioning

confidence: 99%

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Recent advances in the multicomponent synthesis of heterocycles using tetronic acid

Javahershenas,

Nikzat

2023

RSC Adv.

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Section: Furo[34-b]chromene-15(6h)-dionementioning

confidence: 99%

“…This is followed by the in situ reaction of tetronic acid ( 1 ) with intermediate A , without separation, to obtain the fused-tricyclic target compounds ( 24 ). 49…”

Section: Synthesis Of O-heterocycle Compoundsmentioning

confidence: 99%