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Title: The synthesis and binding characters of 1,3-bis(uracil-1/3-ylmethyl)benzene based acyclic and cyclic receptors
Authors: Kumar, Subodh
Paul, Dharam
Singh, Harjit
Issue Date: Feb-2000
Publisher: NISCAIR-CSIR, India
Abstract: The phase transfer catalysed reactions of 1,3-bis(uracil-1-ylmethyl)-2-methoxy-5-methylbenzene 2 with 2-bromoethyl methyl ether, 2-bromoethyl 2-butoxyethyl ether, 1,5-dibromo-3-oxapentane, 1,8-dibromo-3,6-dioxaoctane and 1, 11-dibromo-3,6,9-trioxaun-decane provide respective acyclic receptors 4a,b and cyclic receptors 6a-c. 1,14-Bis(uracil-1-yl)-3,6,9, 12-tetraoxa-2, 13-dioxotridecane 16 reacts with 1,3-bis(bromomethyl)-2-methoxy/ acetoxy-5-methylbenzene to give cyclic receptors 17a, b. The studies on the representative cases reveal that 17b, wherein 1,3-arylidene unit is placed between N-3 positions of two uracils shows much higher order of ionophore character than 4a, 4b and 6b, wherein 1,3-arylidene unit is present between N-1 positions of uracils.
Page(s): 83-88
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.39B(02) [February 2000]

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