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Synthesis of Aryl Trimethylstannanes from Aryl Amines: A Sandmeyer-Type Stannylation Reaction
作者:Di Qiu、He Meng、Liang Jin、Shuai Wang、Shengbo Tang、Xi Wang、Fanyang Mo、Yan Zhang、Jianbo Wang
DOI:10.1002/anie.201304579
日期:2013.10.25
Sandmeyer‐type stannylation: Stille coupling is one of the most powerful coupling reactions for CC bond formation, whereas there are only limited methods to access aryl stannane compounds. A mild stannylation process based on a Sandmeyer‐type transformation using aromatic amines as the starting materials is described. DCE: 1,2‐dichloroethane.
4-Aryl-3-bromo-2(5H)-furanones have been selectively synthesized in satisfactory yields by treatment of easily available 3,4-dibromo-2(5H)-furanone either with arylboronic acids in the presence of Ag2O and a catalytic amount of PdCl2(MeCN)2 or with aryl(trialkyl)stannanes in the presence of a catalyst precursor consisting of AsPh3 and a Pd(II) or a Pd(0) compound. These monobromo derivatives have been
Mechanism of addition of aryltrimethyl-silanes and -stannanes to tricarbonyl(cyclohexadienyl)ruthenium(II) cation
作者:Timothy I. Odiaka
DOI:10.1039/dt9850001049
日期:——
Kinetic studies of the reaction between the organometallic complex [Ru(CO)3(1–5-η-C6H7)]BF4(1) and aryltrimethyl-silanes and -stannanes of the type XC6H4M′Me3(M′= Si or Sn; X = H, 4-NMe2, 4-OMe, 1 -OMe, 4-Me, 4-SMe, 4-F, 4-Cl, 4-Br, 3-F, or 3-CF3) reveal the rate law, rate =k[ Ru][XC6H4M′Me3]. This rate law has been rationalised in terms of a rate-determining electrophilic attack by complex (1) on
有机金属配合物[Ru(CO)3(1–5-η-C 6 H 7)] BF 4(1)与XC 6 H 4 M'Me型芳基三甲基硅烷和-锡烷之间反应的动力学研究3(M'= Si或Sn; X = H,4-NME 2,4-OME,1 -OMe,4-ME,4- SME,4-F,4-CL,4-溴,3-F,或3-CF 3)揭示速率定律,速率= k [Ru] [XC 6 H 4 M'Me 3 ]。通过确定复合物(1)对XC 6 H 4的亲电进攻速率,已经合理化了该速率定律。M'Me 3底物形成[Ru(CO)3 1-4-η- C6 H 7(XC 6 H 4 M'Me 3)}](2)类型的Wheland型Σ-络合物中间体裂解Me 3 M–C(二烯基)键以生成新化合物[Ru(CO)3 1–4-η-C 6 H 7(C 6 H 4 X)}](3)。这些反应具有相当大的合成兴趣,因为它们为否则无法获得的取代的苯并衍生物
Interaction of organotin compounds with trans-carbonylchlorobis(triphenylphosphine)platinum(II) perchlorate