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18731-43-6

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18731-43-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18731-43-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,3 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18731-43:
(7*1)+(6*8)+(5*7)+(4*3)+(3*1)+(2*4)+(1*3)=116
116 % 10 = 6
So 18731-43-6 is a valid CAS Registry Number.

18731-43-6Relevant articles and documents

C-C bond formation catalyzed by natural gelatin and collagen proteins

Kuehbeck, Dennis,Dhar, Basab Bijayi,Schoen, Eva-Maria,Cativiela, Carlos,Gotor-Fernandez, Vicente,Diaz, David Diaz

, p. 1111 - 1118 (2013)

The activity of gelatin and collagen proteins towards C-C bond formation via Henry (nitroaldol) reaction between aldehydes and nitroalkanes is demonstrated for the first time. Among other variables, protein source, physical state and chemical modification

Synthesis of high surface area mixed metal oxide from the NiMgAl LDH precursor for nitro-aldol condensation reaction

Bharali, Dipshikha,Devi, Rasna,Bharali, Pankaj,Deka, Ramesh C.

, p. 172 - 178 (2015)

We have investigated the effect of divalent metal cations on the structural and catalytic activity of MgAl-layered double hydroxide (LDH), by partially substituting Mg2+ with M2+ (M2+ = Ni2+ or Co2+)

DNA-catalyzed Henry reaction in pure water and the striking influence of organic buffer systems

H?ring, Marleen,Pérez-Madrigal, Maria M.,Kühbeck, Dennis,Pettignano, Asja,Quignard, Fran?oise,Díaz, David Díaz

, p. 4136 - 4147 (2015)

In this manuscript we report a critical evaluation of the ability of natural DNA to mediate the nitroaldol (Henry) reaction at physiological temperature in pure water. Under these conditions, no background reaction took place (i.e., control experiment wit

Zinc-proline complex: An efficient, reusable catalyst for direct nitroaldol reaction in aqueous media

Reddy, K. Rajender,Rajasekhar,Krishna, G. Gopi

, p. 1971 - 1976 (2007)

Zinc-proline complex is an effective homogeneous catalyst for the nitroaldol reaction to afford 2-nitro alcohols in high yields at room temperature in water. The catalyst is reused for several cycles with consistent activity. Copyright Taylor & Francis Gr

The henry reaction in [Bmim][PF6]-based microemulsions promoted by acylase

Xia, Wen-Jian,Xie, Zong-Bo,Jiang, Guo-Fang,Le, Zhang-Gao

, p. 13910 - 13919 (2013)

An environmentally-friendly, enzyme-promoted procedure for the Henry reaction was first studied using water-in-[Bmim][PF6] microemulsions as reaction medium. The Amano acylase from Aspergillus oryzae showed better catalytic activity for the addition reactions of nitromethane with a series of aromatic aldehydes, and a highest yield of 90% was obtained.

Synthesis of DPA-triazole structures and their application as ligand for metal catalyzed organic reactions

Colombo Dugoni, Greta,Sacchetti, Alessandro,Urra Mancilla, Carolina

, (2021/12/06)

In this work, the use of DPA-triazole (DPA = dipicolylamine) molecules as ligands for metal catalyzed organic reactions has been investigated. A small library of ligands has been prepared by a CuAAC (click reaction) between propargyl-DPA and different azi

Polymeric nanoassembly of imine functionalized magnetite for loading copper salts to catalyze Henry and A3-coupling reactions

Rathod, Prakash B.,Kumar, K.S. Ajish,Athawale, Anjali A.,Pandey, Ashok K.

, (2021/03/09)

Poly(ethylenimine) was grafted on the magnetite (Fe3O4) nanoparticles, and subsequently reacted with different aldehydes to form the imine functionalities (Fe3O4-Imine NPs). Thus formed Fe3O4/su

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