1: (N,N-diisopropylcarbamoyloxy)methyl p-tolyl sulfone With isopropylmagnesium chloride in tetrahydrofuran T=0°C; 2 h; Inert atmosphere; 2: benzaldehyde in tetrahydrofuran T=0°C; 0.833333 h; Inert atmosphere; 3: With diisobutylaluminium hydride in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;

1: (N,N-diisopropylcarbamoyloxy)methyl p-tolyl sulfone With isopropylmagnesium chloride in tetrahydrofuran T=0°C; 2 h; Inert atmosphere; 2: benzophenone in tetrahydrofuran T=0°C; 0.833333 h; Inert atmosphere; 3: With diisobutylaluminium hydride in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;