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33422-43-4

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33422-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33422-43-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,2 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33422-43:
(7*3)+(6*3)+(5*4)+(4*2)+(3*2)+(2*4)+(1*3)=84
84 % 10 = 4
So 33422-43-4 is a valid CAS Registry Number.

33422-43-4Downstream Products

33422-43-4Relevant articles and documents

One-pot reductive amination of carboxylic acids: a sustainable method for primary amine synthesis

Coeck, Robin,De Vos, Dirk E.

supporting information, p. 5105 - 5114 (2020/08/25)

The reductive amination of carboxylic acids is a very green, efficient and sustainable method for the production of (bio-based) amines. However, with current technology, this reaction requires two to three reaction steps. Here, we report the first (heterogeneous) catalytic system for the one-pot reductive amination of carboxylic acids to amines, with solely H2 and NH3 as the reactants. This reaction can be performed with relatively cheap ruthenium-tungsten bimetallic catalysts in the green and benign solvent cyclopentyl methyl ether (CPME). Selectivities of up to 99% for the primary amine could be achieved at high conversions. Additionally, the catalyst is recyclable and tolerant for common impurities such as water and cations (e.g. sodium carboxylate).

Selective Transformations of Triglycerides into Fatty Amines, Amides, and Nitriles by using Heterogeneous Catalysis

Jamil, Md. A. R.,Siddiki, S. M. A. Hakim,Touchy, Abeda Sultana,Rashed, Md. Nurnobi,Poly, Sharmin Sultana,Jing, Yuan,Ting, Kah Wei,Toyao, Takashi,Maeno, Zen,Shimizu, Ken-ichi

, p. 3115 - 3125 (2019/04/26)

The use of triglycerides as an important class of biomass is an effective strategy to realize a more sustainable society. Herein, three heterogeneous catalytic methods are reported for the selective one-pot transformation of triglycerides into value-added chemicals: i) the reductive amination of triglycerides into fatty amines with aqueous NH3 under H2 promoted by ZrO2-supported Pt clusters; ii) the amidation of triglycerides under gaseous NH3 catalyzed by high-silica H-beta (Hβ) zeolite at 180 °C; iii) the Hβ-promoted synthesis of nitriles from triglycerides and gaseous NH3 at 220 °C. These methods are widely applicable to the transformation of various triglycerides (C4–C18 skeletons) into the corresponding amines, amides, and nitriles.

Aqueous solutions of geminal alkylammonium surfactants as a medium for reactions of long-chain amines

Mirgorodskaya,Kudryavtseva

experimental part, p. 42 - 48 (2009/05/30)

The formation of surfactant-hydrophobic amine mixed aggregates reduces the pK a of long-chain amines by 1-1.5 units compared with those in molecular solutions and is an important factor responsible for the high catalytic effect of the system in

Pyridine-derived heterocycles as potential photoacylating reagents

Helgen, Celine,Bochet, Christian G.

, p. 797 - 805 (2007/10/03)

We prepared several pyridine-derived heterocycles and investigated their photoacylating properties. Among representatives of 4 families of compounds (1-acetyl-7-azaindole, 1-acetyl-7-azaindoline, 2-acetamindpyridine and 2-amidopyrimidines), the 2-aminopyrimidine derivatives were the most promising candidates. Photoacylation of dodecylamine yields up to 47% were obtained, upon irradiation with UV light at 254 nm.

Effect of micellar surfactant solutions on the reactivity of long-chain amines

Mirgorodskaya,Kudryavtseva,Zuev,Vylegzhanina

, p. 1849 - 1852 (2007/10/03)

The kinetics of the interaction of long-chain alkylamines with p-nitrophenyl laurate in aqueous micellar solutions of cetylpyridinium bromide was studied. It was found that the reactivity of the amines changes when mixed aggregates are formed and that it depends on the ratio between components of the system. A nonlinear increase in the molecular packing density of the mixed micelles with the amine concentration was recorded by spin probe EPR.

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