线性共轭乙炔酮1,3,5-二芳基戊-4-烯-2-炔-1-酮已在三氟甲基磺酸CF 3 SO 3 H中环化为2,6-二芳基-2,3-二氢吡喃-4-酮这些烯酮与CF 3 SO 3 H中的芳烃的反应提供了乙炔键1,3,5-三芳基戊-2,4-二烯-1-酮的氢芳基化产物,这些环进一步被环化成3-芳基-3-氧代亚丙基茚满。
Synthesis and Cytotoxicity of Selenium-Containing Dienones
作者:D. M. Gusev、A. S. Bunev、A. A. Golovanov
DOI:10.1134/s1070363220020085
日期:2020.2
occurs regioselectively at the β-carbon of the triple bond of 1,5-disubstituted pent-2-ene-4-yne-1-ones, pent-4-ene-2-yne-1-ones and pent-1-ene-4-yne-3-ones. The resulting selenium-containing conjugateddienones exhibit pronounced cytotoxicity against some tumor cell lines.
(Trimethylsilyl)ethynyl bromide can be easily transformed into conjugated (E)-enynones, whose skeleton consists of consecutive carbonyl, ethynyl, and (E)-ethenyl units, via a one-pot multicomponent Suzuki-type reaction―Sonogashira reaction sequence. Thus, a three-component coupling of (trimethylsilyl)ethynyl bromide, (E)-alk-1-enyldisiamylborane and acid chloride is achieved in a two-step, one-pot
Reactions of substituted 1H-imidazole-2-thiols with pent-2-en-4-yn-1-ones
作者:D. M. Gusev、P. V. Dorovatovskii、Yu. G. Borisova、A. I. Popcov、S. S. Zlotskii、A. A. Golovanov
DOI:10.1007/s11172-024-4214-x
日期:2024.4
The base-catalyzed reaction between 4-phenyl-1H-imidazole-2-thiol and 1,5-diaryl-substituted (E)-pent-2-en-4-yn-1-ones proceeded with the involvement of the C≡CCH=CH moiety of the substrate and HS, HN groups of the reagents to give 5H-imidazo[2,1-b]-[1,3]thiazine derivatives (6-endo-trig cyclization). Under the same conditions, the reactions of these linearly conjugated enynones with 4,5-diphenyl-
4-苯基-1H-咪唑-2-硫醇和1,5-二芳基取代的( E )-戊-2-en-4-yn-1-酮之间的碱催化反应在C的参与下进行底物的 ≡CCH=CH 部分和试剂的 HS、HN 基团产生 5 H -咪唑并[2,1- b ]-[1,3]噻嗪衍生物(6-内三环化)。在相同条件下,这些线性共轭烯酮与4,5-二苯基-1H-咪唑-2-硫醇的反应进行呋喃环闭合(5- exo-dig环化)。涉及4-苯基-和4,5-二苯基-取代的1H-咪唑-2-硫醇的反应途径的差异可以通过过渡态中产生的空间效应来解释。
Thiylation of (E)-1,5-diphenylpent-4-en-2-yn-1-one
作者:A. A. Golovanov、D. M. Gusev、S. S. Zlotskii
DOI:10.1134/s1070428016080194
日期:2016.8
IMAN, MANOUTCHER;BOUYSSOU, PASCAL;CHENAULT, JACQUES, SYNTHESIS,(1990) N, C. 631-632
作者:IMAN, MANOUTCHER、BOUYSSOU, PASCAL、CHENAULT, JACQUES