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152431-33-9

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152431-33-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 152431-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,4,3 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 152431-33:
(8*1)+(7*5)+(6*2)+(5*4)+(4*3)+(3*1)+(2*3)+(1*3)=99
99 % 10 = 9
So 152431-33-9 is a valid CAS Registry Number.

152431-33-9Relevant articles and documents

Two are better than one - Synthesis of novel blue and green emissive hydroxy-oxadiazoles

Anghel, C?t?lin C.,B?descu, Codru?a,H?dade, Niculina D.,M?d?lan, Augustin M.,Matache, Mihaela,Mirea, Anca G.,P?un, Anca,Popescu, Codru?a C.

, (2021/11/16)

We describe herein synthesis of novel hydroxy-bis-2,5-disubstituted-1,3,4-oxadiazoles and their ability to emit green light, through ESIPT mechanism. Unlike previous reports, our compounds exhibit very good quantum yields, most likely avoiding the presume

Synthesis, magnetism, 1H NMR and redox activity of dicopper(II) complexes having a discrete {Cu2(μ-phenoxide)2}2+ unit supported by a non-macrocyclic ligand environment. Crystal structure of [Cu2(L)2(OCIO3)2] [HL = 4-methyl-2,6-bis(pyrazol-1-ylmethyl)-phenol]

Gupta, Rajeev,Mukherjee, Sumitra,Mukherjee, Rabindranath

, p. 4025 - 4030 (2007/10/03)

Reaction between 4-methyl-2,6-bis(pyrazol-l-ylmethyl)phenol (HL) or its 3,5-dimethylpyrazole derivative (HL′) and Cu(ClO4)2·6H2O afforded [CuII2(L/L′)2(OClO3) 2] 1 and 2. Complex 1 has been structurally characterized showing that each copper(II) centre is square pyramidal with two bridging phenoxide oxygens and two terminal pyrazole nitrogens in the equatorial plane and a perchlorate oxygen atom axially co-ordinated. Variable-temperature magnetic susceptibility measurements revealed that the dicopper(II) centres are strongly antiferromagnetically coupled [singlet-triplet energy separation, 2J (in cm-1): -1204 for 1 and -798 for 2]. The complexes exhibit 1H NMR spectra within δ 0-10 due to their S = 0 ground state. In MeCN solution they exhibit ligand field transitions in the range 14 300-16 600 cm-1 and phenolate-to-copper(II) charge-transfer transition at ≈22 700 cm-1. In MeCN solution each complex displays three consecutive irreversible responses (scan rate of 50 mV s-1) with Epc values (V vs. SCE) at -0.02, -0.54 and -0.86 (1) and 0.00, -0.42 and -0.80 (2). The first two responses are due to CuIICuI and the most cathodic response to CuI-Cu0 redox processes, respectively. The Royal Society of Chemistry 1999.

Synthesis and Polymerisation Behaviour of 2-Aryl-5-methylene-1,3-dioxolan-4-ones and Arylbis(5-methylene-1,3-dioxolan-2-yl-4-on)es

Zeuner, F.,Moszner, N.,Rheinberger, V.

, p. 478 - 485 (2007/10/02)

Starting from 2,6-di(hydroxymethyl)-4-methylphenol-Na-salt-1-hydrate (1) a synthesis of 2-alkoxy-5-methylisophthaldialdehydes (3a,b) is described via alkylation and oxidation.Condensation of aromatic aldehydes with 3-bromo-2-hydroxypropanoic acid (β-bromolactic acid) affords diastereoisomeric mixtures of new 2-aryl-5-bromomethyl-1,3-dioxolan-4-ones (6a-h) as well as the corresponding bisdioxolanones (6i-l).Dehydrobromination of 2-aryl-5-bromomethyl-1,3-dioxolan-4-ones (6a-d,i) with DBU leads to 2-aryl-5-methylene-1,3-dioxolan-4-ones (8a-e).Polymerization of compounds 8a,b,d and e proceed via opening of the dioxolanone ring.

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