62596-42-3Relevant academic research and scientific papers
Stereoselective Synthesis of cis-2-Ene-1,4-diones via Aerobic Oxidation of Substituted Furans Catalyzed by ABNO/HNO3
Yang, Liqun,Wang, Jingyang,Wang, Yue,Li, Xiaotong,Liu, Wei,Zhang, Zhaoguo,Xie, Xiaomin
, p. 14311 - 14320 (2021/10/25)
We report a highly efficient and selective catalytic system, ABNO (9-azabicyclo-[3.3.1]nonane N-oxyl)/HNO3, for the aerobic oxidation of substituted furans to cis-2-ene-1,4-diones under mild reaction conditions using oxygen as the oxidant. The catalyst system is amenable to various substituted (mon-, di-, and tri-) furans and tolerates diverse functional groups, including cyano, nitro, naphthyl, ketone, ester, heterocycle, and even formyl groups. Based on the control and 18O-labeling experiments, the possible mechanism of the oxidation is proposed.
Dual Oxidation State Tandem Catalysis in the Palladium-Catalyzed Isomerization of Alkynyl Epoxides to Furans
Arroniz, Carlos,Chaubet, Guilhem,Anderson, Edward A.
, p. 8290 - 8295 (2018/09/06)
A two-catalyst system consisting of different oxidation states of palladium is described, which mediates the isomerization of alkynyl epoxides to furans. In a process termed dual oxidation state tandem catalysis , a multistep isomerization pathway is delineated in which the different metal oxidation states and ligands play independent mechanistic roles, but which, in combination, enable the use of milder reaction conditions and lower catalyst loadings than a single catalyst in isolation. In the present context, this rare example of a homobimetallic catalytic transformation provides a mild, scalable, and atom-efficient route for furan synthesis.
The Photochemistry of α,β-Acetylenic Ketones. II. Formation of Furan Derivatives
Nishio, Takehiko,Nakata, Hiroyuki,Omote, Yoshimori
, p. 1011 - 1013 (2007/10/02)
The phochemical reactions of α,β-acetylenic ketones have been examined.Irradiation of 1-p-substituted phenyl-2-propyn-1-ones 2-4 in primary alcohols gave 2,5-disubstituted furans 2a-4c.The formation of furans can be explained in terms of cyclization, foll
A NOVEL PALLADIUM-CATALYZED REARRANGEMENT OF ACETYLENIC KETONES TO FURANS
Sheng, Huaiyu,Lin, Shouyuan,Huang, Yaozeng
, p. 4893 - 4894 (2007/10/02)
A novel rearrangement of 1-aryl-4-alkyl-2-butyn-1-one in the presence of Pd(dba)2-PPh3 catalyst gave 2,4-substituted furans in moderate yields.
