Catalytic asymmetric deprotonation using a ligand exchange approach
Catalytic asymmetric deprotonation using a ligand exchange approach
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DOI:
10.1021/ja056026d
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发表时间:
2005-11-30
影响因子:
15
通讯作者:
O'Brien, P
中科院分区:
文献类型:
--
作者:
McGrath, MJ;O'Brien, P
A novel ligand exchange approach to catalytic asymmetric deprotonation−electrophilic trapping has been developed that uses 1.3 equiv ofs-BuLi, 0.06−0.2 equiv of chiral diamine ((−)-sparteine or a (+)-sparteine surrogate), and 1.2 equiv of achiral bispidine. The methodology is illustrated with a range of examples and gives access to either enantiomer of useful chiral products in good yields using substoichiometric amounts of chiral diamines.