toluene-4-sulfonic acid in toluene 8 h; Heating;

1: 1.) sec-BuLi , TMEDA / THF , cyclohexane , 1.) -78 deg C , 1 h , 2.) -78 deg C to room temperature , 8 h 2: 1.) sec-BuLi 3: 99 percent / NaBH4 / ethanol / 2 h 4: 82 percent / p-Toluenesulfonic acid / toluene / 8 h / Heating View Scheme

1: 1.) sec-BuLi 2: 99 percent / NaBH4 / ethanol / 2 h 3: 82 percent / p-Toluenesulfonic acid / toluene / 8 h / Heating View Scheme

1: 1.) sec-BuLi 2: 99 percent / NaBH4 / ethanol / 2 h 3: 82 percent / p-Toluenesulfonic acid / toluene / 8 h / Heating View Scheme

1: 99 percent / NaBH4 / ethanol / 2 h 2: 82 percent / p-Toluenesulfonic acid / toluene / 8 h / Heating View Scheme