Cross-Coupling Reactions of Pyrimidin-2-yl Sulfonates with Phenols and Anilines: An Efficient Approach to C2-Functionalized Pyrimidines
作者:Zhengjun Quan、Fuqiang Jing、Zhang Zhang、Yuxia Da、Xicun Wang
DOI:10.1002/cjoc.201300536
日期:2013.12
Pyrimidin‐2‐yl sulfonates, as an efficientreaction partner, which can be easily prepared from cheap commercial materials, were coupled with phenols and anilines to give a wide array of C2‐aryloxy‐ and arylaminopyrimidines in good to excellent yields under mild reaction conditions.
Pd-Catalyzed Direct Arylation of Tautomerizable Heterocycles with Aryl Boronic Acids via C−OH Bond Activation Using Phosphonium Salts
作者:Fu-An Kang、Zhihua Sui、William V. Murray
DOI:10.1021/ja804804p
日期:2008.8.27
first direct arylation via C-OH bondactivation of tautomerizable heterocycles has been achieved using phosphonium salts, on the basis of a combination of the phosphonium coupling and Suzuki-Miyauracross-coupling conditions. Optimal reaction condition is obtained through screening of phosphonium salts, Pd catalysts, and bases. The direct arylation via C-OH bondactivation tolerates a variety of tautomerizable
C-O and C-S coupling reaction of 1,2-di(pyrimidin-2-yl) disulfides with phenols/thiophenols promoted by copper(I) chloride
作者:Ping Zhang、Yan Guo、Zheng-Jun Quan
DOI:10.1002/hc.21397
日期:2017.9
C-O and C-S bonds formation by the cross-coupling reaction of 1,2-di(pyrimidin-2-yl) disulfides with phenols/thiophenols promoted by copper(I) chloride was established. It was discovered that variously substituted di(hetero)aryl disulfides and phenols were well tolerated. This strategy is the conversion of disulfides into hetero-aryl ethers and thioethers by a copper-promoted chemoselectiveC-S bond cleavage
建立了通过氯化铜(I)促进的 1,2-二(嘧啶-2-基)二硫化物与苯酚/苯硫酚的交叉偶联反应形成 CO 和 CS 键的有效方案。发现各种取代的二(杂)芳基二硫化物和酚类具有良好的耐受性。该策略是通过铜促进的二硫化物的化学选择性 CS 键裂解,将二硫化物转化为杂芳基醚和硫醚。
Oxidative Dehydrosulfurative Carbon–Oxygen Cross-Coupling of 3,4-Dihydropyrimidine-2-thiones with Aryl Alcohols
作者:Trong Nguyen Huu Phan、Jihong Lee、Hyunik Shin、Jeong-Hun Sohn