100008-34-2Relevant articles and documents
2,3-dichloro-5,6-dicyano-1,4-benzoquinone-catalyzed teactions employing MnO2 as a stoichiometric oxidant
Liu, Lei,Floreancig, Paul E.
, p. 4686 - 4689 (2010)
Several oxidative reactions can be effected with MnO2 in the presence of substoichiometric quantities of DDQ. These transformations include oxidative cyclization, deprotection, and dehydrogenation reactions. The use of MnO2 as a terminal oxidant for DDQ-mediated reactions is attractive based on economical and environmental factors.
Oxidative alkylation of cyclic benzyl ethers with malonates and ketones using oxygen as the terminal oxidant
Yoo, Woo-Jin,Correia, Camille A.,Zhang, Yuhua,Li, Chao-Jun
, p. 138 - 142 (2009)
A simple oxidative alkylation of cyclic benzyl ethers with malonates and ketones was developed using a mixture of Cu(OTf)2, InCl3, and NHPI as catalyst under an atmospheric pressure of oxygen. Georg Thieme Verlag Stuttgart.
Palladium on Carbon-Catalyzed Benzylic Methoxylation for Synthesis of Mixed Acetals and Orthoesters
Yasukawa, Naoki,Kanie, Takafumi,Kuwata, Marina,Monguchi, Yasunari,Sajiki, Hironao,Sawama, Yoshinari
, p. 10974 - 10977 (2017/08/22)
The palladium on carbon (Pd/C)-catalyzed direct methoxylation of the benzylic positions of linear benzyl and cyclic ether substrates proceeded in the presence of i-Pr2NEt under an oxygen atmosphere to give the corresponding mixed acetals. Cyclic acetal derivatives could also be converted into orthoesters. The present direct methoxylation via a carbon-hydrogen (C?H) functionalization can be accomplished using the easily-removed Pd/C and molecular oxygen as a green oxidant. The obtained mixed acetals were transformed into the corresponding ether products by chemoselective substitution of the methoxy group using a silyltriflate, 2,4,6-collidine, and a nucleophile. The orthoester derivative could also be transformed into the cyclic ketal under similar reaction conditions.
Copper(II) catalyzed cross-dehydrogenative coupling of cyclic benzylic ethers with simple carbonyl compounds by Na2S2O 8
Pan, Xinhui,Hu, Qingwen,Chen, Wenfang,Liu, Xigong,Sun, Bin,Huang, Zhouli,Zeng, Ziyu,Wang, Liguo,Zhao, Dan,Ji, Mei,Liu, Lei,Lou, Hongxiang
, p. 3447 - 3451 (2014/05/06)
Copper(II) catalyzed cross-dehydrogenative coupling of cyclic benzylic ethers with a variety of simple carbonyl compounds mediated by Na 2S2O8 is developed. The scope of carbonyl components is broad, including simple aldeh