1: N-ethyl-N,N-diisopropylamine / dichloromethane / 12 h / -78 - 20 °C / |Inert atmosphere 2: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 12 h / 0 - 20 °C / |Inert atmosphere 3: phenyl-magnesium bromide / tetrahydrofuran / 0.17 h / -78 °C / |Inert atmosphere View Scheme

1: N-ethyl-N,N-diisopropylamine / dichloromethane / 12 h / -78 - 20 °C / |Inert atmosphere 2: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 12 h / 0 - 20 °C / |Inert atmosphere 3: phenyl-magnesium bromide / tetrahydrofuran / 0.17 h / -78 °C / |Inert atmosphere View Scheme

1: N-ethyl-N,N-diisopropylamine / dichloromethane / 12 h / -78 - 20 °C / |Inert atmosphere 2: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 12 h / 0 - 20 °C / |Inert atmosphere 3: phenyl-magnesium bromide / tetrahydrofuran / 0.17 h / -78 °C / |Inert atmosphere View Scheme

1: N-ethyl-N,N-diisopropylamine / dichloromethane / 12 h / -78 - 20 °C / |Inert atmosphere 2: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 12 h / 0 - 20 °C / |Inert atmosphere 3: phenyl-magnesium bromide / tetrahydrofuran / 0.17 h / -78 °C / |Inert atmosphere View Scheme