The design and synthesis of a mixed 2-pyridonate-Ta(NMe2)3Cl complex for the direct C-H alkylation adjacent to nitrogen in unprotected secondary amines are reported. The hydroaminoalkylation of sterically demanding internal alkenes gives the direct, catalytic formation of C(sp(3))-C(sp(3)) bonds. Substrate scope investigations reveal key strategies for further catalyst development efforts in this 100%
报道了用于在未保护的仲胺中与氮相邻的直接 CH 烷基化的混合 2-
吡啶酮酸酯-Ta(NMe2)3Cl 复合物的设计和合成。空间要求高的内部烯烃的氢
氨基烷基化直接催化形成 C(sp(3))-C(sp(3)) 键。底物范围研究揭示了在 100% 原子经济合成 α-烷基化胺中进一步开发催化剂的关键策略。