1: (4-methoxyphenyl)methanol With manganese(IV) oxide in chloroform 2 h; Reflux; 2: 1-(4-nitrobenzyl)-tetrahydrothiophenium bromide With 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine in chloroform Corey-Tschaikosky Epoxidation; 0.333333 h;

Oxonereg;; sodium hydrogencarbonate in water; acetone; acetonitrile T=0°C; 5 h;

1: lithium hydroxide hydrate / tetrahydrofuran / 5 h / 70 °C 2: sodium hydrogencarbonate; Oxonereg; / water; acetonitrile; acetone / 5 h / 0 °C View Scheme

1: lithium hydroxide hydrate / tetrahydrofuran / 5 h / 70 °C 2: sodium hydrogencarbonate; Oxonereg; / water; acetonitrile; acetone / 5 h / 0 °C View Scheme

1.1: acetone / 19 h / 20 °C 2.1: manganese(IV) oxide / chloroform / 2 h / |Reflux 2.2: 0.33 h View Scheme

trifluoroacetic acid; bis-[(trifluoroacetoxy)iodo]benzene in dichloromethane 24 h; Ambient temperature;