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Table 3 Yields and conditions for 2b-d

From: Second-generation pterocarpanquinones: synthesis and antileishmanial activity

Entry Cond. a 3 2 (%)
1 B b 3b R1 = R2 = H 2b (30%)
2 C 3b R1 = R2 = H 2d (26%)
3 B 3c R1 = Cl; R2 = H 2c (25%)
4 C 3c R1 = Cl; R2 = H 2c (72%)
5 C 3d R1 = R2 = -OCH2O- 2d (40%)
  1. a Conditions: B - Pd(OAc)2 (10 mol%), Ag2CO3 (1.5 equiv.), pinacolone, reflux, 18 h; C - Pd(OAc)2 (10 mol%), Ag2CO3 (1.1 equiv.), PEG-400, 140 °C, 10 min
  2. b MW: 40 W, 60 °C,110 °C, 40 min