Fig. 2: Optimization of reaction conditions.a
From: Umpolung reactivity of strained C–C σ-bonds without transition-metal catalysis
a Reaction conditions A: BCB 1a (0.2 mmol), alkene 2a (0.1 mmol), Na2SO4 (0.17 mmol), 80 °C in DMSO (0.1 mL) under argon, 24 h, isolated yield. b Reaction conditions B: BCB 1a (0.1 mmol), alkene 2a (0.4 mmol).
