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Table 2 Yields of dehydrogenative Heck Reaction experiments

From: Second-generation pterocarpanquinones: synthesis and antileishmanial activity

Entry Cond. a Time Oxidant 2a (%)
1 B 18 h   34%
2 C 2.5 h   Traces b
3 D 18 h Cu(AcO)2 30%
4 D 40 min K2S2O8 15%
  1. a Conditions: B - Pd(OAc)2 (10 mol%), Ag2CO3 (1.5 equiv.), pinacolone, reflux, C - Pd(OAc)2 (10 mol%), Ag2CO3 (1.1 equiv.), PEG-400, 140 °C. Conditions: D - Pd(OAc)2 (10 mol%), Ag2CO3 (1.5 equiv.), Oxidant, pinacolone, reflux
  2. b 2a’ was formed in 60:40 proportion 2a:2a’, respectively