28115-25-5Relevant articles and documents
A new and efficient method for the preparation of 2,4,6,8- Tetraazabicyclo[3.3.0]octane-3,7-diones (Glycolurils) catalyzed by keggin, wells-dawson, and preyssler heteropolyoxometalates, effect of structure on the reactivity
Tayebee, Reza,Esmaei, Rezaei-Seresht,Behrooz, Maleki
, p. 183 - 191 (2012)
Some important cis- and trans-alkyl substituted glycolurils were prepared via condensation of vicinal dicarbonyl compounds with urea and/or methylurea catalyzed by 0.95 mol% of Keggin- type H3PW12O 40 under environmentally benign and simple condition. Proficiency of structurally different heteropolyoxometalates, including Keggin, Wells-Dawson, and Preyssler, was investigated in the reaction of urea with 2, 3-butanedione. A common method was introduced for the isolation of cis- and trans-isomers, role of different solvents was studied, and effect of catalyst mol% was also investigated in this reported.
Synthesis of Glycoluril using Urea Phosphate
Karpagalakshmi, K.,Lakshminarayanan, P.,Prakash, R.,Ramalakshmi, S.,Selvapalam, N.,Usha, G.,Yang, C.
, p. 1988 - 1992 (2022/01/24)
Abstract: Glycolurils are building blocks for the synthesis of cucurbiturils that are important host materials for several applications. Glycolurils are prepared conveniently by the condensation of 1,2-diketones with urea using an acid as catalyst. Herein, we report a facile method of synthesis of various glycolurils using urea phosphate and 1,2-diketones.
ACYCLIC CUCURBIT(N)URIL TYPE MOLECULAR CONTAINERS TO TREAT INTOXICATION AND DECREASE RELAPSE RATE IN SUBSTANCE ABUSE DISORDERS
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Paragraph 0144, (2016/12/12)
Provided are methods for reversing the effects of drugs of abuse. The method involves administering acyclic CB[n]-type compounds to a mammal in need of the reversal of the effects from a drug of abuse.