BF<sub>3</sub>-Promoted Divergent Reactions between Tryptophols and Propargylic Alcohols
作者:Kai Huang、Guorong Sheng、Ping Lu、Yanguang Wang
DOI:10.1021/acs.orglett.7b01769
日期:2017.8.4
Trifluoroboron-promoted cascade reactions between tryptophols and propagylic alcohols furnished three types of skeletons, including carbazoles, cyclopenta[b]furo[2,3-b]indoles, and allenyl furo[2,3-b]indoles, with excellent selectivity based on the substrate structure. Tryptophols without a substituent on the 2-position of the indole ring reacted with 1,1,3-triphenylprop-2-yn-1-ol and 9-(phenyleth
三氟化硼促进的tryptophols和propagylic醇之间的级联反应提供三种类型的骨架,包括咔唑,环戊二烯并[ b ]呋喃并[2,3- b ]吲哚,和丙二烯基呋喃并[2,3- b ]吲哚,具有优良的选择性基于基板结构。在吲哚环的2位上没有取代基的色酚与1,1,3-三苯基丙-2-yn-1-ol和9-(苯基乙炔基)-9 H-芴-9 -ol反应生成咔唑和环戊[b]呋喃并[2,3- b ]吲哚,而2-取代的三甲基酚反应生成了烯基呋喃并[2,3 - b ]吲哚。