1452397-36-2Relevant academic research and scientific papers
Activation Method of Propargylic Carboxylates by Using Metal-Catalyzed
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Paragraph 0278-0281, (2020/03/24)
The present invention relating to a method using a metal catalyst for activating propargylic carboxylate and the use thereof and, more specifically, to an annulene cyclic compound manufactured via reductive cyclization within a molecule by making propargylic carboxylate react with a metal catalyst; and the method using thereof for manufacturing a precursor compound of a tricyclic compound with seven cyclic cycles on the center thereof. The precursor compound of the tricyclic compound with the seven cyclic cycles on the center is used as a precursor compound of 6,7,n-tricyclic natural material or synthetic compound such as barbatusol, pisiferin, faveline, xochitlolone.
Gold-catalyzed sequential activation of propargylic carboxylates: A facile route to benzoannulenes
Oh, Chang Ho,Kim, Ji Hee,Oh, Bu Keun,Park, Jong Ryul,Lee, Ji Ho
, p. 2592 - 2596 (2013/03/14)
A cascade reaction of 1-(2-(3-acetoxyprop-1-ynyl)phenyl)prop-2-ynyl acetate and its derivatives is catalyzed by gold to give the corresponding benzo[7]annulenes (see scheme) in excellent yields. A double activation of the gold catalyst toward two different propargylic carboxylates was proposed. Benzoannulenes were hydrolyzed to 8-hydroxybenzo[7]annulene-5-ones. Copyright
