The N-carbamoyl squaramide dimer:: a compact, strongly associated H-bonding motif

被引：43

作者：

Davis, AP ^{[1
]}

Draper, SM

Dunne, G

Ashton, P

机构：

[1] Univ Dublin Trinity Coll, Dept Chem, Dublin 2, Ireland

[2] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England

来源：

CHEMICAL COMMUNICATIONS | 1999年 / 22期

关键词：

D O I：

10.1039/a907179b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

N-Carbamoyl squaramides 3, readily available from dialkyl squarate 5, form hydrogen-bonded dimers in solution and in non-polar organic solvents; in CDCl3 they show no significant dissociation down to concentrations of -0.5 mM.

引用

页码：2265 / 2266

页数：2

共 9 条

[1] Strong dimerization of ureidopyrimidones via quadruple hydrogen bonding
Beijer, FH
Sijbesma, RP
Kooijman, H
Spek, AL
Meijer, EW
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (27) : 6761 - 6769
[2] Self-association without regard to prototropy. A heterocycle that forms extremely stable quadruply hydrogen-bonded dimers
Corbin, PS
Zimmerman, SC
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (37) : 9710 - 9711
[3] A new approach for the design of supramolecular recognition units: Hydrogen-bonded molecular duplexes
Gong, B
Yan, YF
Zeng, HQ
Skrzypczak-Jankunn, E
Kim, YW
Zhu, J
Ickes, H
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (23) : 5607 - 5608
[4] Heterodimers for molecular recognition by fourfold hydrogen bonds
Lüning, U
Kühl, C
[J]. TETRAHEDRON LETTERS, 1998, 39 (32) : 5735 - 5738
[5] Squaramido-based receptors:: Molecular recognition of carboxylate anions in highly competitive media.
Prohens, R
Tomàs, S
Morey, J
Deyà, PM
Ballester, P
Costa, A
[J]. TETRAHEDRON LETTERS, 1998, 39 (09) : 1063 - 1066
[6] PHASE ANNEALING IN SHELX-90 - DIRECT METHODS FOR LARGER STRUCTURES
SHELDRICK, GM
[J]. ACTA CRYSTALLOGRAPHICA SECTION A, 1990, 46 : 467 - 473
[7] Reversible polymers formed from self-complementary monomers using quadruple hydrogen bonding
Sijbesma, RP
Beijer, FH
Brunsveld, L
Folmer, BJB
Hirschberg, JHKK
Lange, RFM
Lowe, JKL
Meijer, EW
[J]. SCIENCE, 1997, 278 (5343) : 1601 - 1604
[8] Squaramido-based receptors: Design, synthesis, and application to the recognition of tetraalkylammonium compounds
Tomas, S
Prohens, R
Vega, M
Rotger, MC
Deya, PM
Ballester, P
Costa, A
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1996, 61 (26) : 9394 - 9401
[9] WILCOX CS, 1990, FRONTIERS SUPRAMOLEC, P123

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