Reactions and mass spectra of some aryl-alkyl sulphoxides
作者:I. D. Entwistle、R. A. W. Johnstone、B. J. Millard
DOI:10.1039/j39670000302
日期:——
sulphoxides Ph·[CH2]n·SO·Me (n= 0–4) were compared in pyrolytic and mass spectrometric behaviour. On pyrolysis either β-elimination or rearrangement occurred, but similar effects were not observed in the massspectra. The attempted preparation of one of the sulphoxides actually yielded the next higher homologue by a complex series of reactions.
在热解和质谱分析行为中比较了亚砜Ph·[CH 2 ] n ·SO·Me(n = 0–4)。在热解过程中,发生了β-消除或重排,但在质谱图中未观察到类似的作用。通过一系列复杂的反应,尝试制备一种亚砜实际上产生了下一个更高的同系物。
Pd-Catalyzed Multicomponent Cross-Coupling of Allyl Esters with Alkyl Bromides and Potassium Metabisulfite: Access to Allylic Sulfones
A Pd-catalyzed multicomponent cross-coupling of allyl esters with alkyl bromides to synthesize allylic sulfones by using K2S2O5 as a connector is first reported. The reaction displays a broad range of substrate generality along with excellent functional group compatibility and produces the products with high regioselectivity (only E). Furthermore, the biologically active molecules with a late-stage
首次报道了以K 2 S 2 O 5作为连接剂,Pd催化烯丙基酯与烷基溴多组分交叉偶联合成烯丙基砜。该反应显示出广泛的底物通用性以及优异的官能团兼容性,并产生具有高区域选择性的产物(仅E)。此外,经过后期修饰的生物活性分子,包括阿司匹林、薄荷醇、冰片、雌酮等,也与多组分交叉偶联反应高度相容。机理研究表明SO 2插入C-Pd 键的过程参与了这一转变。
ASATRYAN EH. M.; MALXASYAN A. TS.; MIRAKYAN S. M.; MARTIROSYAN G. T., AJKAKAN KIMIAKAN AMSAGIR, ARM. XIM. ZH., 1980, HO 10, 868-869
作者:ASATRYAN EH. M.、 MALXASYAN A. TS.、 MIRAKYAN S. M.、 MARTIROSYAN G. T.