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52792-18-4

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52792-18-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52792-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,7,9 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 52792-18:
(7*5)+(6*2)+(5*7)+(4*9)+(3*2)+(2*1)+(1*8)=134
134 % 10 = 4
So 52792-18-4 is a valid CAS Registry Number.

52792-18-4Relevant articles and documents

Synthesis and photoluminescent properties of conjugated aryl-vinyl dioctyl 2,6-dimethylbenzofuro[5,6-b]furan-3,7-dicarboxylate derivatives

Bosiak, Mariusz J.,Rakowiecki, Marcin,Or?owska, Katarzyna J.,K?dziera, Dariusz,Adams, J?rg

, p. 803 - 811 (2013)

The synthesis of highly fluorescent conjugated benzodifuran aryl-vinyl systems, containing four double bonds and at least four phenyl rings, is described. The ethyl groups of diethyl 2,6-dimethylbenzofuro[5,6-b]furan-3,7- dicarboxylate, obtained by the Michael type condensation of p-benzoquinone and ethyl acetoacetate, were replaced by octyl groups via the transesterification reaction to improve the desired product solubility in common organic solvents. The dioctyl ester was brominated and used for the Wittig reaction with stilbene aldehydes, obtained by the Heck reaction of 4-bromobenzaldehyde and an appropriate styrene. The products, obtained in 48-92% yield, exhibit the UV-Vis fluorescence with high quantum yields, 58-69%.

Novel stilbene-based Fischer base analog of leuco-TAM - (2E,2′Z)-{2-(4-(E)-styrylphenyl)propane-1,3-diylidene}bis(1,3,3-trimethylindoline) - derivatives: Synthesis and structural consideration by 1D NMR and 2D NMR spectroscopy

Keum, Sam-Rok,Lim, Hyun-Woo

, p. 143 - 150 (2016/02/09)

We report the synthesis of a series of novel stilbene-based (St) Fischer base analogs of leuco-triarylmethane (LTAM) dyes by treating Fischer base with (E)-4-styrylbenzaldehyde derivatives. All St-LTAM molecules examined herein are characterized by 1D and 2D NMR. They were found to exhibit ZE configuration and isomerize to their diastereomers EE and ZZ in 2-3 h. They exhibit type I behavior of diastereomeric isomerization.

Palladium chloride and tetraphenylphosphonium bromide intercalated clay as a new catalyst for the Heck reaction

Varma, Rajender S.,Naicker, Kannan P.,Liesen, Per J.

, p. 2075 - 2078 (2007/10/03)

A new modified clay material, prepared by intercalating palladium chloride and tetraphenylphosphonium bromide into montmorillonite K10 clay, catalyzes the Heck reaction and affords trans-stilbenes in high yields.

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