sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride in chloroform 0.5 h; Heating;

1: 60 percent / aq. NaOH / benzyltriethylammonium chloride / CHCl3 / 0.5 h / Heating 2: 1.) sodium methoxide, 2.) aq. NaOH / 1.) MeOH, RT, 2 h; 2.) RT, 0.5 h View Scheme