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. 2021 Oct 25;6(44):29483–29494. doi: 10.1021/acsomega.1c03469

Table 2. Synthesis of 4-Substituted Coumarins 2a–g.

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a

Yield (%) of the pure isolated compound (rt, 6–24 h).

b

10 mol % of the catalyst was used; 79% conversion.

c

75% conversion.

d

Yield (%) of the pure isolated compound (70 °C, 24 h).

e

Decomposition.