Synthesis and alkaline earth metal cation extraction by proton di-ionizable p-tert-butylcalix[4]arene-crown-5 compounds in cone, partial-cone and 1,3-alternate conformations

2006 ◽  
Vol 4 (6) ◽  
pp. 1104 ◽  
Author(s):  
Hui Zhou ◽  
Kazimierz Surowiec ◽  
David W. Purkiss ◽  
Richard A. Bartsch
Tetrahedron ◽  
2002 ◽  
Vol 58 (45) ◽  
pp. 9223-9230 ◽  
Author(s):  
Paula M Marcos ◽  
Sandra Félix ◽  
José R Ascenso ◽  
M Amélia Santos ◽  
Manuel A.P Segurado ◽  
...  

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