Copper-Catalyzed Annulation–Trifluoromethyl Functionalization of Enynones
作者:Jia-Yin Wang、Sai Zhang、Yao Tang、Shenghu Yan、Guigen Li
DOI:10.1021/acs.orglett.3c00679
日期:2023.4.14
of quaternary carbon-centered 1-indanones in moderate to good chemical yields. The reaction of enynones with Togni’s reagent and chloro- or bromotrimethylsilane afforded halo- and CF3-containing 1-indenones. However, the addition of K3PO4 as a base into the catalytic system led to forming cyano-anchored (Z)-1-indanones as major stereoisomeric products. This strategy exhibits remarkable compatibility
已经建立了 Cu(I) 催化的烯酮的环化-卤代三氟甲基化和氰基三氟甲基化,能够以中等到良好的化学产率合成以季碳为中心的 1-茚满酮的多键形成。烯酮与 Togni 试剂和氯代或溴代三甲基硅烷反应,得到含卤素和 CF 3的 1-茚酮。然而,将 K 3 PO 4作为碱添加到催化体系中导致形成氰基锚定的 ( Z )-1-茚满酮作为主要的立体异构产物。该策略表现出与多种烯酮的显着相容性。
HIBINO, SATOSHI;KANO, SHINZO;MOCHIZUKI, NAOKI;SUGINO, EIICHI, J. ORG. CHEM., 1984, 49, N 25, 5006-5008