1: (3-bromophenyl)acetic acid methyl ester With pinacol borane; 4,4'-di-tert-butyl-2,2'-dipyridyl; bis(η4-1,5-cyclooctadiene)-di-μ-methoxy-diiridium(I) in hexane T=20°C; 18 h; 2: carbamic acid 1,1-dimethylethyl ester With caesium carbonate; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene; tris(dibenzylideneacetone)dipalladium (0) in tetrahydrofuran T=100°C; 2.5 h; 3: With Oxonereg;; sodium periodate in water; acetone T=20°C;

sodium hydrogencarbonate in tetrahydrofuran T=20°C; 36 h;