Triflic Acid Promoted Transformations of Linear‐Conjugated Enynones and their Reactions with Arenes. Synthesis of Dihydropyranones, Conjugated Dienones, and Indanes
作者:Anna S. Zalivatskaya、Alexander A. Golovanov、Irina A. Boyarskaya、Mariya A. Kruykova、Olesya V. Khoroshilova、Aleksander V. Vasilyev
DOI:10.1002/ejoc.202100280
日期:2021.5.14
Linear‐conjugated enynones,1,5‐diarylpent‐4‐en‐2‐yn‐1‐ones, have been cyclized into 2,6‐diaryl‐2,3‐dihydropyran‐4‐ones in triflic acid CF3SO3H. Reactions of these enynones with arenes in CF3SO3H have afforded products of hydroarylation of the acetylene bond, 1,3,5‐triarylpent‐2,4‐dien‐1‐ones, which have been further cyclized into 3‐aryl‐3‐oxopropylidene indanes.
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。