Asymmetric additions to dichlorophenyldioxane, a new chiral acetal
摘要:
4-(2,6-Dichlorophenyl)-1,3-dioxanes have been reacted with weak nucleophiles and TiCl4 to give benzyl ethers with high selectivity. The major products are consistent with an S(N)2-like mechanism. The benzyl ether is removed in one step using Li/NH3 to give non-racemic secondary alcohols.
Asymmetric additions to dichlorophenyldioxane, a new chiral acetal
摘要:
4-(2,6-Dichlorophenyl)-1,3-dioxanes have been reacted with weak nucleophiles and TiCl4 to give benzyl ethers with high selectivity. The major products are consistent with an S(N)2-like mechanism. The benzyl ether is removed in one step using Li/NH3 to give non-racemic secondary alcohols.
Asymmetric additions to dichlorophenyldioxane, a new chiral acetal
作者:Merritt B. Andrus、Salvatore D. Lepore
DOI:10.1016/0040-4039(95)01960-p
日期:1995.12
4-(2,6-Dichlorophenyl)-1,3-dioxanes have been reacted with weak nucleophiles and TiCl4 to give benzyl ethers with high selectivity. The major products are consistent with an S(N)2-like mechanism. The benzyl ether is removed in one step using Li/NH3 to give non-racemic secondary alcohols.