1127646-90-5Relevant academic research and scientific papers
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
supporting information, 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
Platinum-catalyzed cyclization of o-alkynyl(oxo)benzenes with alkenes by 1,2-migration of benzene: Synthesis of 8-oxabicyclo[3.2.1]octane derivatives
Shu, Xing-Zhong,Zhao, Shu-Chun,Ji, Ke-Gong,Zheng, Zhao-Jing,Liu, Xue-Yuan,Liang, Yong-Min
supporting information; experimental part, p. 117 - 122 (2009/07/05)
An interesting migration of the rigid structure of benzene was observed when propargylic esters were introduced to the cyclization chemistry of o-alkynyl(oxo)benzene. Various 8-oxabicyclo[3.2.1]octane derivatives with many functional groups could be synthesized from this efficient approach catalyzed by platinum. The high stereo- and regioselectivity involved in this transformation was also attractive. Wiley-VCH Verlag GmbH & Co. KGaA, 2009.
