Diastereodifferentiating photodimerization of alkyl 2-naphthoates with chiral auxiliaries
作者:Hong-Xia Xu、Bin Chen、Li-Ping Zhang、Li-Zhu Wu、Chen-Ho Tung
DOI:10.1016/j.tetlet.2009.06.053
日期:2009.9
Photodimerization of alkyl 2-naphthoates with chiral auxiliaries resulted in cubane-like anti head-to-head photodimers in 93% yield and with up to 59% diastereomeric excess. After removal of the chiral auxiliaries enantiomers of cubane-like photodimer of 2-naphthalene carboxylic acid were obtained in 80% yield.
2-萘甲酸烷基酯与手性助剂的光二聚化产生了类似古巴的抗头对头光二聚体,收率达93%,非对映体过量高达59%。在除去手性助剂后,以80%的产率获得了2-萘甲酸的类似古巴的光二聚体的手性对映体。