2003
DOI: 10.1016/s0040-4020(03)00150-9
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Preparation of glycoluril monomers for expanded cucurbit[n]uril synthesis

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Cited by 62 publications
(55 citation statements)
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“…It seemed likely that if the CB[n] family could be modified to improve their solubility in organic media, to alter the size and shape of the cavity, and to provide different functional groups that interact directly with guests then the range of potential applications of the CB[n] family would be dramatically expanded. The following sections describe the approaches that we, [245][246][247][248][249] and others, [8,90,201,[250][251][252][253][254] have taken toward alleviating these potential limitations.…”
Section: Cb[n] Familymentioning
confidence: 99%
“…It seemed likely that if the CB[n] family could be modified to improve their solubility in organic media, to alter the size and shape of the cavity, and to provide different functional groups that interact directly with guests then the range of potential applications of the CB[n] family would be dramatically expanded. The following sections describe the approaches that we, [245][246][247][248][249] and others, [8,90,201,[250][251][252][253][254] have taken toward alleviating these potential limitations.…”
Section: Cb[n] Familymentioning
confidence: 99%
“…1. 3,7,9,4,6,8,propellane (TOP AP) 2의 합성[3] Glycoluril diethyl ester의 합성은 보고된 문헌의 방법 [3,5] H NMR (acetone-d6) δ 9.86 (s, 2H) 4.38 (q, 4H, J = 7.1 Hz), 1.27 (t, 6H, J = 7.14 Hz); 13 C NMR (acetone-d6) δ 162. 6,147.4,76.0,66.1,14.1;Anal.…”
Section: )unclassified
“…A basicidade destes compostos é bastante baixa sendo verificados pKa's do ácido conjugado do CB [6] da ordem de 3, sendo desconhecida para os outros cucurbitandos. Uma das estratégias para contornar o problema de solubilidade é a utilização de meios salinos ou ácidos para aumentar a solubilidade destes compostos pela formação de complexos com ácidos duros ou, ainda, pela protonação das carbonilas dos opérculos destas estruturas 12 4,7,[16][17][18][19][20][21][22][23][24][25][26][27] . A reação de CB [6], por exemplo com K 2 S 2 O 8 , dá origem a 12 grupos OH radiais nos carbonos terciários em meio aquoso 22,28 , enquanto que a utilização de dimetil glicolurila como monômero precursor dá origem à decametil-CB [5] …”
Section: Síntese E Propriedades Físico-químicasunclassified