539-47-9Relevant articles and documents
Biomass-derived rctt-3,4-di-2-furanyl-1,2-cyclobutanedicarboxylic acid: a polytopic ligand for synthesizing green metal-organic materials
Shahni, Rahul K.,Amjaour, Houssein,Krupinsky, Briana,Reagen, Sarah,Wang, Zijun D.,Wu, Xu,Nkemngong, Dominic,Zhao, Julia X.,Ugrinov, Angel,Robertson, Joseph,Chu, Qianli Rick
, p. 226 - 240 (2021/02/26)
Biomass is an abundant and environmentally friendly source for materials that can be used in a multitude of applications in the effort to replace petrochemicals. Furfural and malonic acid are biomass-sourced platforms that can be utilized in the synthesis of biobased compounds; rctt-3,4-di-2-furanyl-1,2-cyclobutanedicarboxylic acid (CBDA-2) is one such compound. In this study, CBDA-2 has been introduced into metal-organic materials chemistry as a semi-rigid polytopic ligand. This compound has been utilized as a polytopic ligand in the formation of two different 2D coordination polymers with Cu2+ and Co2+ as the metal centers via a conventional solution method. Both complexes have been characterized by X-ray crystal structure determination and showed visual thermochromic behaviors. This study demonstrates that CBDA-2 is a promising green building block in coordination chemistry.
Dual Nickel/Ruthenium Strategy for Photoinduced Decarboxylative Cross-Coupling of α,β-Unsaturated Carboxylic Acids with Cycloketone Oxime Esters
Gao, Ang,Jiang, Run-Chuang,Liu, Chuang-Chuang,Liu, Qi-Le,Lu, Xiao-Yu,Xia, Ze-Jie
supporting information, p. 8829 - 8842 (2021/06/30)
Herein, a dual nickel/ruthenium strategy is developed for photoinduced decarboxylative cross-coupling between α,β-unsaturated carboxylic acids and cycloketone oxime esters. The reaction mechanism is distinct from previous photoinduced decarboxylation of α,β-unsaturated carboxylic acids. This reaction might proceed through a nickelacyclopropane intermediate. The C(sp2)-C(sp3) bond constructed by the aforementioned reaction provides an efficient approach to obtaining various cyanoalkyl alkenes, which are synthetically valuable organic skeletons in organic and medicinal chemistry, under mild reaction conditions. The protocol tolerates many critical functional groups and provides a route for the modification of complex organic molecules.
Amino Group Functionalized Hf-Based Metal-Organic Framework for Knoevenagel-Doebner Condensation
Das, Aniruddha,Anbu, Nagaraj,Gogoi, Chiranjib,Dhakshinamoorthy, Amarajothi,Biswas, Shyam
, p. 3396 - 3403 (2021/08/20)
A Hf(IV) metal-organic framework (MOF) with di-amino functionalized linker was obtained as a crystalline solid with UiO-67 topology under solvothermal reaction conditions. The guest free form of Hf(IV) MOF (1′) was efficiently employed as a heterogeneous catalyst to synthesize cinnamic acid derivatives via Knoevenagel-Doebner reaction for the first time. The catalyst (1′) was efficiently active to directly achieve cinnamic acid from benzaldehyde and malonic acid. The solid retained its activity up to 6th cycle with no decay in its activity. The noticeable advantages of the catalyst are its milder reaction conditions, high yield, high stability, recyclable nature towards catalysis and wide substrate scope as well as shape-selective behaviour. The possible mechanism of the reaction was also studied thoroughly with suitable control experiments.
