bromides and CH2═C(NHP)CO2Me (P = Boc or CBz) to form ArCH═C(NHP)CO2Me, which are then used for the asymmetric syntheses of α-amino acids. We also report the first syntheses of ArCH═C(OCOAr1)CO2Me (Ar1 = Ph, 4-Cl−Ph) from ArBr and CH2═C(OCOAr1)CO2Me by the Heck reaction and subsequent successful asymmetric hydrogenation to afford α-hydroxyl esters in excellent chemical yields and good-to-excellent enantioselectivities
本文我们报告芳基
溴化物和CH的第一室温Heck反应2 = C(NHP)CO 2我(P = Boc或C
BZ)而形成ArCH═C(NHP)CO 2 Me中,然后将其用于不对称合成
α-氨基酸。我们还报告ArCH═C(的-OCOAr的第一合成1)CO 2我(AR 1 =苯基,4-CL-PH)从ARBR和CH 2 = C(的-OCOAr 1)CO 2通过Heck反应和随后的成功我不对称氢化,以优异的
化学收率和良好至优异的对映选择性提供α-羟基酯。