描述了在良性反应条件下进行的AB(C 6 F 5)3 H 2 O催化的叔脂肪族氟化物的脱氟官能化。通过快速有效地形成一系列具有新安装的C(sp 3)N,S,C和O键的产品,可以举例说明该方法的综合用途。这项研究说明了其他惰性原料的广泛反应性,并提供了通往有价值的和合成上代表性不足的产品的途径,这些产品以前从未从此类氟化前体中获得。
Alkylphosphinites as Synthons for Stabilized Carbocations
作者:Lukas Ochmann、Mika L. Kessler、Peter R. Schreiner
DOI:10.1021/acs.orglett.2c00042
日期:2022.2.25
new acid-free method for the generation of carbocations based on a redox condensation reaction that enables SN1 reactions with a variety of nucleophiles. We utilize readily synthesized phosphinites that are activated by diisopropyl azodicarboxylate to form betaine structures that collapse upon adding a pronucleophile, thereby yielding reactive carbocation intermediates. We also employ this approach
我们提出了一种基于氧化还原缩合反应的无酸生成碳正离子的新方法,该反应能够与各种亲核试剂发生S N 1 反应。我们利用容易合成的亚膦酸盐,这些亚膦酸盐被偶氮二甲酸二异丙酯活化,形成甜菜碱结构,该结构在添加亲核试剂后坍塌,从而产生反应性碳阳离子中间体。我们还采用这种方法对一些生物活性分子进行烷基化。
Adamantylation of β-dicarbonyl compounds
作者:A. A. Turmasova、E. S. Spesivaya、Dzh. N. Konshina、V. V. Konshin
DOI:10.1007/s11172-012-0239-7
日期:2012.9
Reactions of adamantan-1-ol with β-dicarbonylcompounds in 1,2-dichloroethane in the presence of In(OTf)3, Ga(OTf)3, Sc(OTf)3, or Cu(OTf)2 give the corresponding adamantylated derivatives in 45–93% yields.
α-(1-adamantyl)-β-diketones are now accessible by the alkylation of Co(II) complexes of β-diketones with 1-bromoadamantane. The intermediacy of adamantyl cation is proposed. Co(II), Co(III) and Zn(II) complexes of pentane-2,4-dione react with alkyl halides precursors of stabilized carbeniumions, to give 3-alkylpentane-2,4-diones.
Alkylation of dicarbonyl compounds with 1-bromoadamantane in the presence of metal complex catalysts
作者:R. I. Khusnutdinov、N. A. Shchadneva、L. F. Khisamova
DOI:10.1134/s1070428016030064
日期:2016.3
Adamantyl-substituted dicarbonyl compounds have been synthesized by reactions of 1-bromo-adamantane with ethyl acetoacetate, 1,3-diphenylpropane-1,3-dione, and dimethyl malonate in the presence of iron and manganese complexes.
GONZALEZ A.; MARQUET J.; MORENO-MANAS M., TETRAHEDRON, 42,(1986) N 15, 4253-4257