Citation: Geng Xu, Zhan Zhu Liu. Synthesis of new chiral 1,2,3,4-tertrahydroisoquinoline β-amino alcohol for asymmetric diethylzinc addition to aryl aldehydes (I)[J]. Chinese Chemical Letters, ;2009, 20(12): 1393-1396. doi: 10.1016/j.cclet.2009.06.040
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Four new chiral 1,2,3,4-tetrahydroisoquinoline-derived β-amino alcohols were synthesized from commercially available L-DOPA.These ligands were evaluated in the asymmetric addition of diethylzinc to benzaldehydes and showed different catalytic activities (up to 86% ee).The solvent played an important role in the enantioselective process.The transition state models were proposed to explain the reversion of the product configuration.
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