η3-2-Methylcrotyl(tiglyl)titanocene reacts with aldehydes to afford anti homoallylic alcohols when the reaction is carried out in THF, and preferentially syn products when the solvent is HMPA/THF=3:1. This simple control of anti versus syn diastereoselectivity expands considerably the synthetic uses of the crotyltitanation reaction.
                                    η3-2-甲基克罗提尔(提基尔)
钛烯与醛反应时,在THF溶剂中生成反式同伴醇,而在HMPA/THF=3:1的溶剂中则优先生成顺式产物。这种简单的反式与顺式非对映选择性的控制大大扩展了克罗提尔
钛化反应的合成用途。