Synthesis of allyl sulfones from potassium allyltrifluoroborates
作者:Agnese Stikute、Jevgeņija Lugiņina、Māris Turks
DOI:10.1016/j.tetlet.2017.05.097
日期:2017.7
undergoes a SNAr reaction with sulfinyloxy-trifluoroborates to produce the corresponding 2,4-dinitrophenylsulfone. The developed method allows the transformation of potassium allyltrifluoroborates into allyl sulfones.
钾allyltrifluoroborates进行了bora-烯与二氧化硫在不存在路易斯酸催化剂的,得到亚磺酰-三氟硼酸,其随后经历烷基化与亲电子,以产生在砜高达91%产率反应。苄基卤化物和卤代乙酸衍生物可用作烷基化试剂,而Sanger试剂与亚磺酰氧基三氟硼酸酯进行S N Ar反应,生成相应的2,4-二硝基苯砜。所开发的方法允许将烯丙基三氟硼酸钾转化为烯丙基砜。
Radical Cyanocarbonylation Using Alkyl Allyl Sulfone Precursors
作者:Sunggak Kim、Ilhyong Ryu、Sangmo Kim、Chang Ho Cho、Yoshitaka Uenoyama
DOI:10.1055/s-2005-921932
日期:——
Acyl cyanides have been prepared by the three-component coupling reactions comprised of alkyl allylsulfones, carbon monoxide, and p-tolylsulfonyl cyanide under tin-free radical reaction conditions.
酰基氰化物是由烷基烯丙基砜、一氧化碳和对甲苯磺酰氰在锡自由基反应条件下通过三组分偶联反应制备的。
Tin-Free Radical-Mediated C���C-Bond Formations with Alkyl Allyl Sulfones as Radical Precursors