T=180°C; 0.5 h;

1: pyrolysis 2: tetrahydrofuran; cyclohexane / 44 h / 30 °C / Irradiation View Scheme

in tetrahydrofuran; cyclohexane T=30°C; 30 h; Irradiationeffect of solvent, time; Product distributionMechanism;

1.1: 66 percent / 120 °C / 0.5 Torr 2.1: NaHMDS / tetrahydrofuran / -78 - 20 °C 2.2: SiO2 3.1: 82 percent / aq. HCl / dioxane / 0.67 h / 50 °C 4.1: 95 percent / pyridine; DMAP / CH2Cl2 / 1 h / 20 °C 5.1: NaIO4; RuCl3 / acetonitrile; CCl4; H2O / 6 h 6.1: 36 mg / diethyl ether; methanol; hexane / 0.5 h / 20 °C 7.1: 92 percent / NaOMe / methanol / 1 h / 20 °C View Scheme

C58H41O4P in dichloromethane T=20°C; Mannich reaction; 12 h; Molecular sieve; optical yield given as percent eeenantioselective reaction;

C58H41O4P; calcium chloride in dichloromethane T=20°C; Mannich reaction; 12 h; enantioselective reaction;

T=120°C; P=0.5 Torr;

T=180°C; 0.5 h;

in methanol T=20°C;

indium monochloride; rac-3,3'-bis(tert-butyl)-5,5'6,6'-tetramethyl-1,1'-binphenyl-2,2'-dihydrogenphosphonate silver salt in CPME; toluene T=23°C; 10.6667 h; Inert atmosphereDarkness;