Bhalerao; Raju, B. China; Neelakantan, Parvathi, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1996, vol. 35, # 6, p. 530 - 533
Highly Efficient Copper‐Mediated Atom‐Transfer Radical Addition (ATRA) in the Presence of Reducing Agent
作者:William T. Eckenhoff、Sean T. Garrity、Tomislav Pintauer
DOI:10.1002/ejic.200701144
日期:2008.2
(TPMA)Br][Br] complexes in ATRA reactions of polybrominated compounds to alkenes in the presence of reducing agent (AIBN) was reported. [Cu II (TPMA)Br][Br], in conjunction with AIBN, effectively catalyzed ATRA reactions of CBr 4 and CHBr 3 to alkenes with concentrations between 5 and 100 ppm, which is the lowest number achieved in copper-mediated ATRA. The molecular structure of Cu I (TPMA)Br indicated that
Cu I (TPMA)Br [TPMA = tris(2-pyridylmethyl)amine] 和 [Cu II (TPMA)Br][Br] 配合物在多溴化合物与烯烃的 ATRA 反应中的合成、表征和特殊活性还原剂(AIBN)的报道。[Cu II (TPMA)Br][Br] 与 AIBN 结合,有效地催化 CBr 4 和 CHBr 3 生成烯烃的 ATRA 反应,浓度在 5 到 100 ppm 之间,这是在铜介导的 ATRA 中达到的最低值。Cu I (TPMA)Br 的分子结构表明,由于 TPMA [Cu I -N: 2.1024(15), 2.0753(15), 2.0709(15) 和 2.4397 (14) A] 和溴化物阴离子连接到铜 (I) 中心 [CU I -Br 2.5088(3) A]。变温 1 H NMR 和循环伏安法研究证实了 Cu I (TPMA)Br 和 [Cu
Atom transfer radical addition (ATRA) catalyzed by copper complexes with tris[2-(dimethylamino)ethyl]amine (Me6TREN) ligand in the presence of free-radical diazo initiator AIBN
作者:William T. Eckenhoff、Tomislav Pintauer
DOI:10.1039/c1dt10189g
日期:——
In this article, we focus on the evaluation of tris[2-(dimethylamino)ethyl]amine (Me6TREN) ligand in copper catalyzed ATRA in the presence of free-radical diazo initiator AIBN (2,2′-azobis(2-methylpropionitrile)). The addition of carbon tetrachloride to 1-hexene, 1-octene and cis-cyclooctene proceeded efficiently to yield 89, 85 and 85% of monoadduct, respectively, using the catalyst to alkene ratio
Three molybdenum(VI) dioxido complexes [MoO2(L)2] bearing Schiff base ligands were reacted with B(C6F5)3 to afford the corresponding adducts [MoOOB(C6F5)3}(L)2], which were fully characterized. They exhibit Frustrated Lewis‐Pairs reactivity when reacting with silanes. Especially, the [MoOOB(C6F5)3}(L)2] complex with L=2,4‐dimethyl‐6‐((phenylimino)methyl)phenol proved to be active as catalyst for
三个带有席夫碱配体的二氧化钼(VI)络合物[MoO 2 (L) 2 ]与B(C 6 F 5 ) 3反应,得到相应的加合物[MoOOB(C 6 F 5 ) 3 }(L) 2 ],其特征得到充分表征。当与硅烷反应时,它们表现出受阻路易斯对反应性。特别是,[MoOOB(C 6 F 5 ) 3 }(L) 2 ]与L=2,4-二甲基-6-((苯基亚氨基)甲基)苯酚的络合物被证明具有作为芳基加氢烷基化催化剂的活性。烯烃与有机卤化物以及有机卤化物与脂肪族烯烃的原子转移自由基加成 (ATRA)。使用低催化剂负载量,由简单的烯烃和有机卤化物(如氯仿或溴仿)合成了一系列具有进一步衍生化潜力的偕二氯化物和偕二溴化物化合物。
Kharasch; Jensen; Urry, Journal of the American Chemical Society, 1947, vol. 69, p. 1104
作者:Kharasch、Jensen、Urry
DOI:——
日期:——
ADDITION OF CARBON TETRABROMIDE AND BROMOFORM TO OLEFINS