1: With water; bis(menthylbenzocyclopentadienyl)ZrCl2 in dichloromethane
T=0°C; Claisen rearrangement-methylalumination; 12 h;
2: With oxygen in dichloromethane
Further stages.;
(Ra)-(-)-S-butyl-2-hydroxy-2'-mercapto-1,1'-binaphthyl; Cu(I)[(CH3CN)4]BF4 in tetrahydrofuran
T=-46 - -45°C; 18 h; Title compound not separated from byproducts.;
参考文献
Fraser, Paul K.; Woodward, Simon
Chemistry - A European Journal, 2003 , vol. 9, # 3 p. 776 - 783
