Diaza-18-crown-6- ether

Product name: 4,13-Diaza-18-crown 6-Ether Product code: D2323 Product use: For laboratory research purposes. Restrictions on use: Not for drug or household use. 2. HAZARD(S) IDENTIFICATION OSHA Haz Com: CFR 1910.1200: Skin Corrosion/Irritation [Category 2] Eye Damage/Irritation [Category 2A] Signal word: Warning!

CAS NO. 23978-55-4: EINECS NO. 245-965-0: FORMULA: C 12 H 26 N 2 O 4: MOL WT. 262.35: H.S. CODE Crown Ether is a macrocyclic polyether whose structure contains hydrogen, carbon and oxygen atoms. Each oxygen atoms are confined between two carbon atoms and exhibits a conformation with a hole 2/1/2010 and 64 % yield, respectively. However, the crown ether 24 was prepared applying the method b from diaza-18-crown-6 (16) and 1-adamantanecarbonyl chloride (30) in the yield of 65 %. The subsequent reduction of 24 using LiAlH 4 to afforded 25 in the yield of 49 %. 8/1/2006 Crown ether/18-Crown-6. 1 Product Result | Match Criteria: Product Name 1,10-Dibenzyl-1,10-diaza-18-crown-6, N,N′-Dibenzyl-4,13-diaza-18-crown-6 Empirical Formula (Hill Notation): C 26 H 38 N 2 O 4. Molecular Weight: 442.59.

13.01.2021

1,10-Diaza-18-crown-6 are starting materials to produce macrocyclic polyamine metal-complexing agents. It is used as a ligand in chemistry for the applications of diagnostic imaging technique to identify medical condition or disease and for the development of medication as a therapeutic agent and pharmaceutic aid. Also used as an ether. N,N'-Dibenzyl-4,13-diaza-18-crown 6-Ether. text.skipToContent text.skipToNavigation.

4,13-二氮杂-18-冠-6-醚

2 Sep 2011 Figure 9 – Reaction scheme used to couple diaza-18-crown-6 to terephthaloyl chloride .. 14.

Find 4,13-Diaza-18-crown 6-Ether at SpectrumChemical.com now. Great deals on chemicals and chemical supplies.

[TCIメールNo.116] アームドクラウンエーテル / Armed Crown Ether.

EC Number 245-965-0. MDL number MFCD00005112. PubChem Substance ID 24857813. NACRES NA.22 See full list on en.wikipedia.org Due to high demand for SPECTRUM 4, 13-Diaza-18-Crown 6-Ether, 1g, availability is subject to change without notice. Host: Guest chemistry of diaza-18-crown-6: Selective precipitation from mixtures of oligohydroxy phenols and the structures of five host: Guest complexes. Journal of Inclusion Phenomena 1988 , 6 (5) , 491-505. Diaza-18-crown-6 compounds of the formula I: ##STR1## wherein X is a phenol, naphthol or quinolinol moiety selected from those of the formulae: ##STR2## R 1 , R 2 , R 3 , R 4 and R 5 are independently selected from hydrogen, halo, cyano, nitro, (C 1 -C 6 ) alkyl, (C 2 -C 8 ) acyl, acetamido, mercapto, alkyl or arylsulfonyl, trifluoromethyl, aryl, and substituted aryl wherein the aryl moiety is 4,13-Diaza-18-crown-6 in the presence of aquated trivalent lanthanide ions and p-sulfonatocalix[4]arene results in a ‘molecular capsule’ type arrangement with two 4− charge calixarenes and two water molecules shrouding the di-protonated crown ether with overall charged balance from two lanthanide ions.

TCI uses cookies to personalize and improve your user experience. By continuing on our website The synthesis of four diaza-18-crown-6 ethers with C2 -symmetry derived from trans - (R, R)-1,2-diaminocyclohexane bearing methyl, phenyl and phenoxymethyl moeities attached to a stereogenic centre on the crown ring were achieved. Practical syntheses of versatile building blocks of crown ethers 1 and 2, chiral amine precursors 3–6 and chiral diaza 18-crown-6 ethers 7–12 are reported starting from chiral amines. A series of N, N ‘-dialkyl-4,13-diaza-18-crown-6 lariat ethers possessing two C 8 H 17 (2), (CH 2) 3 C 8 F 17 (3), (CH 2) 3 C 10 F 21 (4), and (CH 2) 2 C 8 F 17 (5) side arms were synthesized in good yields by N -alkylation of 4,13-diaza-18-crown-6.

MOFs featuring crown ethers have not been reported previously. We are interested in developing crown-based MOFs because crown ethers are well-known to bind alkali metal ions such as Li, Na, and K with high selectivity. Read "ChemInform Abstract: Syntheses of Unsymmetrically N,N′‐Bis(substituted)‐4,13‐diaza‐18‐crown‐ 6 Ether Derivatives as a New Electron Donor‐Spacer‐Acceptor Triad., ChemInform" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. 4,13-Diaza-18-crown 6-Ether. text.skipToContent text.skipToNavigation. TCI uses cookies to personalize and improve your user experience. By continuing on our website The synthesis of four diaza-18-crown-6 ethers with C2 -symmetry derived from trans - (R, R)-1,2-diaminocyclohexane bearing methyl, phenyl and phenoxymethyl moeities attached to a stereogenic centre on the crown ring were achieved.

Application of self organizing maps and GA-MLR for the estimation of stability constant of 18-crown-6 ether derivatives with sodium cation vol.79, pp .1-2, 2014 Diaza-18-crown-6 appended dual 7-hydroxyquinolines; mercury ion recognition in aqueous solution pp .21 4/1/2014 5/28/2020 Suppliers and manufactures - with identical CAS number as Crown ether/18-Crown-6 For the following products supplier are listed below: 1,4,7,10,13,16-Hexaoxacyclooctadecane 18-Crown 6-Ether 18-Crown-6 Diaza-18-crown-6 compounds of the formula I: wherein X is a phenol, naphthol or quinolinol moiety selected from those of the formulae: R1, R2, R3, R4 and R5 are independently selected from hydrogen, halo, cyano, nitro, (C1-C6) alkyl, (C2-C8) acyl, acetamido, mercapto, alkyl or arylsulfonyl, trifluoromethyl, aryl, and substituted aryl wherein the aryl moiety … Ten new 8-hydroxyquinoline-containing diaza-18-crown-6 ligands and analogues were synthesized via a one-pot or stepwise Mannich reaction, reductive amination, or by reacting diaza-18-crown-6 with 5,7-dichloro-2-iodomethyl-8-quinolinol in the presence of N,N-diisopropylethylamine. The Mannich reactio … We have previously shown antitumour activity of a number of 18-crown-6 ether compounds that transport potassium ions across membranes. Here we present data on P-gp inhibitory activity of 16 adamantane-substituted monoaza- and diaza-18-crown-6 ether compounds, and their effect on MDR reversal in model cell lines. S1 Supporting information for A New Highly Sensitive and Selective Fluorescence Chemosensor for Cr3+ Based on a Rhodamine B and 4, 13-Diaza-18-Crown 6-Ether Conjugate Duliang Liua, ‡, Tao Pang b, c, ‡, kefeng, Maa, Wei Jiang a, Xiaofeng Baoa, * a Department of Biochemical Engineering, Nanjing University of Science & Technology, Chemical Engineering Building B302, … Reduction of Ag+ in Diaza-18-crown-6 Russ.Chem.Bull., Int.Ed., Vol. 56, No. 3, March, 2007 411 This structure is the most stable conformer of the neutral the values characteristic of the free diazacrown ether; and complex Ag0•1.

Molecular Weight 262.35 . Beilstein/REAXYS Number 609764 . EC Number 245-965-0. MDL number MFCD00005112. PubChem Substance ID 24857813. NACRES NA.22 See full list on en.wikipedia.org Due to high demand for SPECTRUM 4, 13-Diaza-18-Crown 6-Ether, 1g, availability is subject to change without notice. Host: Guest chemistry of diaza-18-crown-6: Selective precipitation from mixtures of oligohydroxy phenols and the structures of five host: Guest complexes.

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PubChem Substance ID 24857813. NACRES NA.22 See full list on en.wikipedia.org Due to high demand for SPECTRUM 4, 13-Diaza-18-Crown 6-Ether, 1g, availability is subject to change without notice. Host: Guest chemistry of diaza-18-crown-6: Selective precipitation from mixtures of oligohydroxy phenols and the structures of five host: Guest complexes.

Reduction of Ag+ in Diaza-18-crown-6 Russ.Chem.Bull., Int.Ed., Vol. 56, No. 3, March, 2007 411 This structure is the most stable conformer of the neutral the values characteristic of the free diazacrown ether; and complex Ag0•1.

Complexation of lariat ethers II and III with metal cations in solution was studied by 1H NMR spectroscopy (acetone-d6, methanol-d4). The stability constants of the We have previously shown antitumour activity of a number of 18-crown-6 ether compounds that transport potassium ions across membranes. Here we present data on P-gp inhibitory activity of 16 adamantane-substituted monoaza- and diaza-18-crown-6 ether compounds, and their effect on MDR reversal in model cell lines. Reduction of Ag+ in Diaza-18-crown-6 Russ.Chem.Bull., Int.Ed., Vol. 56, No. 3, March, 2007 411 This structure is the most stable conformer of the neutral the values characteristic of the free diazacrown ether; and complex Ag0•1. 4,13-Diaza-18-crown-6 and its derivatives are compounds of considerable current interest despite the parent's high price and limited availability.

EC Number 245-965-0.