A General and Efficient Suzuki-Miyaura Cross-Coupling Protocol Using Weak Base and No Water: The Essential Role of Acetate
作者:Bing Wang、Hui-Xia Sun、Zhi-Hua Sun
DOI:10.1002/ejoc.200900538
日期:2009.8
base, CsOAc, promotes Suzuki–Miyaura cross-coupling and related Pd-catalyzed reactions under anhydrous conditions as effectively as stronger bases. Aryl triflates exhibit unusual reaction rates, which are comparable to that of bromoarenes. A neglected six-membered transition-state model was proposed to give alternative insight into the key process of transmetalation.(© Wiley-VCH Verlag GmbH & Co. KGaA
弱碱 CsOAc 在无水条件下与强碱一样有效地促进 Suzuki-Miyaura 交叉偶联和相关的 Pd 催化反应。芳基三氟甲磺酸酯表现出不寻常的反应速率,可与溴芳烃相媲美。提出了一种被忽略的六元过渡态模型,以提供对金属转移关键过程的替代见解。(© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim,德国,2009)