Catalytic Asymmetric Addition of Terminal Alkynes to Aldehydes Mediated by (1R,2R)-2-(Dimethylamino)- 1,2-diphenylethanol
作者:Mitsuaki Yamashita、Ken-ichi Yamada、Kiyoshi Tomioka
DOI:10.1002/adsc.200505157
日期:2005.10
Catalytic asymmetric alkynylation of aldehydes with terminal alkynes was catalyzed by zinc triflate and (1R,2R)-2-(dimethylamino)-1,2-diphenylethanol in toluene to give the corresponding alcohols with high enantiomeric excess up to 98% in good yields.
三氟甲磺酸锌和(1 R,2 R)-2-(二甲基氨基)-1,2-二苯乙醇在甲苯中催化醛与末端炔烃的催化不对称炔化反应,得到对映体过量高达98%的相应醇产量。