Cu.sub.2O Nanocatalysts Immobilized on p for Synergistic CO.sub.2 Activation to Afford Esters and Heterocycles at Ambient Pressure

• Published in: Catalysis letters Vol. 151; no. 9; p. 2724
• Main Authors: Zhu, Yanfang, Xu, Guiyang, Song, Wenqi, Wu, Maoni, Yao, Ruijuan, Sadeghzadeh, Seyed Mohsen
• Format: Journal Article
• Language: English
• Published: Springer 01.09.2021
• Subjects: Catalysts; Furans
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1007/s10562-020-03518-z

Herein, we report a chemoselective insertion of CO.sub.2 into unsaturated alkyne substrates under ambient conditions, which is achieved over poly (sulfobetain methacrylate) (p(SBMA)) supported Cu.sub.2O nanocatalyst (Cu.sub.2O/p(SBMA)) and a series of 3a,4-dihydronaphtho[2,3-c]furan-1(3H)-ones, can be obtained in excellent yields. Cu.sub.2O/p(SBMA) presents high performance for environment pressure activation and interpolation of CO.sub.2 into unsaturated alkyne substrates. This provides an attainable and competent catalyst for interpolation of CO.sub.2 into aryl alkynes, and binding allylic chlorides through SN.sub.2 mechanism in order to produce efficient ester and lactone heterocycles that are supposed to have favorable utilizations. All in all, these findings signify practical methods of hybrid catalyst development for detailed alterations, including CO.sub.2 employment in a green and sustainable manner. Graphic