1: phenyl-magnesium bromide With Et2AlBr in tetrahydrofuran T=0 - 20°C; Inert atmosphere; 2: With titanium(IV) isopropylate; (S)-(minus;)-1,1'-bi-2-naphthol in toluene T=0°C; 0.5 h; Inert atmosphere; 3: (3-methoxyphenyl)acetoaldehyde Further stages;

1: bromobenzene With magnesium; ethylene dibromide in tetrahydrofuran T=20°C; 2.16667 h; Inert atmosphere; 2: (3-methoxyphenyl)acetoaldehyde in tetrahydrofuran T=20°C; Inert atmosphere;

in diethyl ether T=0°C; competition reaction with bezophenone and 3-methoxy-benzophenone, relative velocity constant;

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