181640-72-2Relevant articles and documents
Selective halogen-lithium exchange reaction of bromine-substituted 25,26,27,28-tetrapropoxycalix[4]arene
Larsen, Mogens,Jorgensen, Mikkel
, p. 6651 - 6655 (1996)
Methods are described for the selective bromine-lithium exchange reaction of bromine-substituted calix[4]arenes with either n-BuLi or t-BuLi in THF. Quenching of the lithiated calix[4]arenes with MeOH, D2O, CH3SSCH3, B(OCHg3)3, DMF, or CO2 as electrophiles resulted in 5-monosubstituted, 5,17-disubstituted, or 5,11,17,23-tetrasubstituted calix[4]arenes with H, D, SCH3, B(OH)2, CHO, or COOH functionalities.
Calix[4]arene-based receptors with hydrogen-bonding groups immersed into a large cavity
Pinkhassik, Evgueni,Sidorov, Vladimir,Stibor, Ivan
, p. 9644 - 9651 (1998)
A one-pot procedure, which combines the Ritter and Friedel-Crafts reactions, produced the first members of a new type of calix[4]arene-based receptors. The cavity in these receptors is formed by a calix[4]arene framework fixed in the cone conformation and
Calix[4]arene amide compound and preparation method and application thereof
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Paragraph 0026; 0027; 0038; 0049; 0060; 0071, (2018/04/21)
The invention belongs to the technical field of chemical aromatic amide compounds, in particular to a calix[4]arene amide compound and a preparation method and application thereof. The preparation method of the calix[4]arene amide compound comprises the following steps of: (1) preparing 5,11,17,23-tetrabromo-25,26,27,28-tetra-n-propyl calix[4]arene (II) in 1,3-alternate conformation; (2) preparing5,11,17,23-tetrathienyl-25,26,27,28-tetra-n-propyl calix[4]arene (III) in 1,3-alternate conformation; (3) preparing 5,11,17,23-tetra(5- formylthiophen)-25,26,27,28-tetra-n-propyl calix[4]arene (IV) in 1,3-alternate conformation; (4) preparing 5,11,17,23-tetra(5-carboxythienyl)-25,26,27,28-tetra-n-propyl calix[4]arene (V) in 1,3-alternate conformation; and (5) dissolving the 5,11,17,23-tetra(5-carboxythienyl)-25,26,27,28-tetra-n-propyl calix[4]arene (V) in 1,3-alternate conformation in 1,2-dichloroethane, cooling the mixture in an ice-water bath, adding thionyl chloride slowly and dropwise, then raising the temperature for reflux for 5 hours, then cooling the obtained mixture in an ice-water bath, adding a mixed solution of ammonia water and methylene chloride for a reaction at room temperature for 8-12 hours to obtain the product 5,11,17,23-tetra(5-acylaminothienyl)-25,26,27,28-tetra-n-propyl calix[4]arene (I) in 1,3-alternate conformation.
Design and synthesis of a new kind of cavitand: Tetrapyrazolylcalix[4] arenes and their supramolecular assemblies
Jiang, Xuan-Feng,Cui, Yu-Xin,Yu, Shu-Yan
, p. 1181 - 1185 (2014/05/20)
Two novel calix[4]arene-based tetrapyrazolyl cavitands with different cavity size were synthesized by multistep reactions. In the solid state, one of the cavitands forms an infinite chain by Aintermolecular hydrogen bonding. The other cavitand undergoes c