These precursors are easily accessible from aryl methyl ketones. Various functional groups like alkyl, aryl, nitrile, amine, aroyl and thiomethyl can be directly installed to the benzene ring. The one-pot approach for the construction of thiomethylated-benzene nucleus was also developed. The structure of the synthesized compound was confirmed by X-ray crystallography.
The aryl pyrimidine derivatives and pharmaceutically acceptable salts and N-oxides thereof, exhibit useful pharmacological properties, including utility as selective 5HT.sub.2B -antagonists.
transition metal free, highly efficient, sulfenylation of ketene dithioacetals catalyzed by an HBr–DMSO system is achieved. This strategy employs inexpensive and readily available HBr and DMSO to provide a direct C–H bond sulfenylation with a broad range of aryl thiols. Highlights of the present strategy are convenient, straightforward approach, metal free, short reaction time and excellent yields. This
One-pot straightforward approach to 2,3-disubstituted benzo/naphtho[b]furans via domino annulation of α-oxoketene dithioacetals and 1,4-benzo/naphthoquinone mediated by AlCl3 at room temperature
versatile and convenient one-pot direct approach to 2,3-disubstituted benzo/naphtho[b]furans via domino annulation of α-oxoketene dithioacetals and 1,4-benzo/naphthoquinone has been achieved in the presence of aluminium chloride at room temperature. This protocol represents an extremely simple, straightforward and rapid entry to highly substitutedbenzo/naphtho[b]furans in good yields from easily viable
在室温下存在氯化铝的情况下,通过α-氧杂环丁烯二硫缩醛和1,4-苯并/萘醌的多米诺环化反应,获得了一种通用且方便的一锅直接方法,用于2,3-二取代的苯并/萘并[ b ]呋喃。该方案代表了在温和的反应条件下,从容易生存的起始原料中以极高的收率非常容易,直接,迅速地进入高度取代的苯并/萘并[ b ]呋喃。
A convenient base-mediated synthesis of 3-aryol-4-methyl (or benzyl)-2-methylthio furans from α-oxo ketene dithioacetals and propargyl alcohols via domino coupling/annulations
A convenient base-mediated synthesis of 3-aryol-4-methyl (or benzyl)-2-methylthio furans2has been developed through the domino coupling/annulations from α-oxo ketene dithioacetals1and propargyl alcohols.