204-02-4Relevant articles and documents
Selective recognition of acetate ion by perimidinium-based receptors
Feng, Meiyun,Jiang, Xiaozhi,Dong, Zhiyun,Zhang, Dawei,Wang, Binshen,Gao, Guohua
, p. 6292 - 6296,5 (2012)
The first perimidinium-based receptors 1 and 2 have been designed and synthesized. The anion binding properties of the receptors were evaluated in DMSO by UV-vis, fluorescence spectroscopy, and 1H NMR methods. The results demonstrate that both receptors 1 and 2 exhibit good selectivity to acetate. The (C- H)+· · ·X- type ionic hydrogen bonding between the perimidinium moieties and acetate is the key interaction for the recognition.
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Barchet et al.
, p. 115 (1967)
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peri-Naphthylenediamines 31.* Study of interconversions of 2,3-dihydroperimidines and 1,8-bis(dialkylamino)naphthaienes. Convenient synthesis of 1,2,2,3-tetramethyl-2,3-dihydroperimidine and a monoisopropyl analog of the "proton sponge"
Ozeryanskii,Filatova,Sorokin,Pozharskii
, p. 846 - 853 (2001)
Efficient procedures were developed for the two-step synthesis of 1,2,2,3-tetramethyl-2,3-dihydroperimidines and for the one-step synthesis of 1,3-dimethyl-2,3-dihydroperimidines starting from 1,8-diaminonaphthalenes. New possibilities of the use of 2,3-dihydroperimidinium salts in the synthesis of 1,8-bis(dialkylamino)naphthalenes ("proton sponges") containing the N-isopropyl group along with the N-methyl groups were demonstrated. The 1,1,2,2,3-pentamethyl-2,3-dihydroperimidinium cation exists in the acyclic iminium form responsible for its high reactivity.
METHOD OF CARBON MONOXIDE FIXATION AND METHOD OF AMINE FORMYLATION
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Paragraph 0078; 0081-0085; 0100-0102, (2021/02/19)
The present invention relates to a method for fixing carbon monoxide in a metal-free condition and a method for formating amine using the same.
In Situ Formation of Frustrated Lewis Pairs in a Water-Tolerant Metal-Organic Framework for the Transformation of CO2
Shyshkanov, Serhii,Nguyen, Tu N.,Ebrahim, Fatmah Mish,Stylianou, Kyriakos C.,Dyson, Paul J.
supporting information, p. 5371 - 5375 (2019/03/17)
Frustrated Lewis pairs (FLPs) consist of sterically hindered Lewis acids and Lewis bases, which provide high catalytic activity towards non-metal-mediated activation of “inert” small molecules, including CO2 among others. One critical issue of homogeneous FLPs, however, is their instability upon recycling, leading to catalytic deactivation. Herein, we provide a solution to this issue by incorporating a bulky Lewis acid-functionalized ligand into a water-tolerant metal-organic framework (MOF), named SION-105, and employing Lewis basic diamine substrates for the in situ formation of FLPs within the MOF. Using CO2 as a C1-feedstock, this combination allows for the efficient transformation of a variety of diamine substrates into benzimidazoles. SION-105 can be easily recycled by washing with MeOH and reused multiple times without losing its identity and catalytic activity, highlighting the advantage of the MOF approach in FLP chemistry.