thionyl chloride in dichloromethane T=25 - 40°C; 1 h;

1: sodium methylate / 4 h / |Inert atmosphere; |Reflux 2: N-chloro-succinimide; dibenzoyl peroxide / tetrachloromethane / 8 h / |Reflux View Scheme

1: thionyl chloride / 1 h / |Inert atmosphere; |Reflux 2: sodium methylate / 4 h / |Inert atmosphere; |Reflux 3: N-chloro-succinimide; dibenzoyl peroxide / tetrachloromethane / 8 h / |Reflux View Scheme

N-chloro-succinimide; dibenzoyl peroxide in tetrachloromethane 8 h; Reflux;