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Beilstein J. Org. Chem. 2021, 17, 2203–2208, doi:10.3762/bjoc.17.142
Graphical Abstract
Scheme 1: Synthesis of 4a: (i) phenol, K2CO3, DMF, reflux, 2 h, 91%; (ii) PhMgBr, dry THF, 0 °C, 2 h, 86%; (i...
Figure 1: Scope of substrates for intramolecular FCA by activation of 4a–l and their isolated yields. aCondit...
Scheme 2: Plausible reaction mechanism for the cyclization reaction of alkene 4a.