1.1: camphor-10-sulfonic acid / methanol / 6 h / 20 °C 2.1: Dess-Martin periodane / dichloromethane / 0.5 h / 40 °C 3.1: trifluoroacetic acid / water; toluene / 2 h / 50 °C 4.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 5.1: mercaptoacetic acid; triethylamine / dichloromethane / 0.5 h / 0 °C 5.2: 0.5 h / 20 °C View Scheme

1.1: Dess-Martin periodane / dichloromethane / 0.5 h / 40 °C 2.1: trifluoroacetic acid / water; toluene / 2 h / 50 °C 3.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 4.1: mercaptoacetic acid; triethylamine / dichloromethane / 0.5 h / 0 °C 4.2: 0.5 h / 20 °C View Scheme

1.1: trifluoroacetic acid / water; toluene / 2 h / 50 °C 2.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 3.1: mercaptoacetic acid; triethylamine / dichloromethane / 0.5 h / 0 °C 3.2: 0.5 h / 20 °C View Scheme

1.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 2.1: mercaptoacetic acid; triethylamine / dichloromethane / 0.5 h / 0 °C 2.2: 0.5 h / 20 °C View Scheme

1.1: tris-(dibenzylideneacetone)dipalladium(0); tris-(o-tolyl)phosphine / acetonitrile / 2 h / 85 °C 2.1: camphor-10-sulfonic acid / methanol / 6 h / 20 °C 3.1: Dess-Martin periodane / dichloromethane / 0.5 h / 40 °C 4.1: trifluoroacetic acid / water; toluene / 2 h / 50 °C 5.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 6.1: mercaptoacetic acid; triethylamine / dichloromethane / 0.5 h / 0 °C 6.2: 0.5 h / 20 °C View Scheme

sodium hydrogencarbonate in chloroform; water 0.333333 h; Yield given. Yields of byproduct given;

hydrogenchloride

sodium sulfite

phenyl silane; oxygen; cobalt(II) 2,4-pentanedionate in tetrahydrofuran 12 h;