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N-(4-Methyl-benzoyl)-acetessigsaeure-amid, also known as N-(4-methylbenzoyl) acetoacetamide, is an organic compound with the chemical formula C11H11NO3. It is a derivative of acetoacetamide, featuring a 4-methylbenzoyl group attached to the nitrogen atom. N-<4-Methyl-benzoyl>-acetessigsaeure-amid is characterized by its white crystalline appearance and is soluble in organic solvents. It is synthesized through the reaction of 4-methylbenzoyl chloride with acetoacetamide, and it finds applications in the field of organic chemistry, particularly as an intermediate in the synthesis of various pharmaceuticals and chemical compounds. The compound's structure and properties make it a valuable building block for the development of new molecules with potential therapeutic or industrial uses.

1141-56-6

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1141-56-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1141-56-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,4 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1141-56:
(6*1)+(5*1)+(4*4)+(3*1)+(2*5)+(1*6)=46
46 % 10 = 6
So 1141-56-6 is a valid CAS Registry Number.

1141-56-6Relevant academic research and scientific papers

Onium Salt-catalyzed Acylations with Diketene

Dehmlow, Eckehard V.,Shamout, Abdul Rahman

, p. 2062 - 2067 (2007/10/02)

Weak NH- and CH-acids can be acylated advantageously by diketene (1) in the presence of a quarternary ammonium chloride.Carboxamides yield with one or two moles of 1 the products 3 or 10 selectively. β-Keto esters and β-diketones lead to 12a, b or 13, respectively, and acetoacetamides give 5 or 8.The polymer 16 and/or 17 is formed by self-condensation of 1.

1,3-Oxazines and Related Compounds. V. N-Acylacetylation of Carboxamides with the Diketene-Halotrimethylsilane System or Acyl Meldrum's Acids

Yamamoto, Yutaka,Ohnishi, Shuhei,Azuma, Yutaka

, p. 3505 - 3512 (2007/10/02)

Various aliphatic and aromatic carboxamides smoothly underwent N-acetoacetylation by means of the diketene-iodotrimethylsilane system to give the corresponding N-acetoacetyl derivatives.The diketene-bromotrimethylsilane system was found to be very efficient for N-acetoacetylation of unsaturated carboxamides such as acrylamide and methacrylamide.In addition, acyl Meldrum's acids proved effective for N-acylacetylation of carboxamides, especially heterocyclic carboxamides such as picolinamides.Keywords: carboxamide; acylacetylation; diketene; iodotrimethylsilane; bromotrimethylsilane; acyl Meldrum's acid

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