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. 2021 Dec 1;122(1):565–788. doi: 10.1021/acs.chemrev.1c00449

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© 2021 The Authors. Published by American Chemical Society

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Scheme 375 — Reagents and conditions: (a)⁷³⁹ dimethylacetamide/o-dichlorobenzene (1:1, v/v), H₂SO₄, 202 °C, 10 days; (b)⁷⁴⁰ 1-methyl-2-pyrrolidone/mesitylene (2:1, v/v), p-TSA (3.5 M), 150 °C, 3 days.