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75474-03-2

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75474-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75474-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,7 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75474-03:
(7*7)+(6*5)+(5*4)+(4*7)+(3*4)+(2*0)+(1*3)=142
142 % 10 = 2
So 75474-03-2 is a valid CAS Registry Number.

75474-03-2Relevant articles and documents

An efficient and simple procedure for preparation of esters and anhydrides from acid chlorides in the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO) under solvent-free conditions

Hajipour,Mazloumi

, p. 23 - 30 (2002)

A manipulatively one-pot and rapid method for the synthesis of aliphatic and aromatic ester and anhydride from acid chloride and alcohol or potassium salt of carboxylic acid under solvent-free conditions is reported. The reaction has been carried out in excellent yield and short reaction time in the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO) under solvent-free conditions.

A facile synthesis of acid anhydrides

Dubey,Kumar, R. Vinod

, p. 1 - 3 (2007/10/03)

A facile synthesis of symmetric and unsymmetric acid anhydrides using phase-transfer catalysis is described. By this method different types of anhydrides can be obtained in high yields under mild conditions even on microscale levels.

NOVEL TRANSFORMATION OF ARENEDIAZONIUM SALTS TO ACID ANHYDRIDES UNDER PALLADIUM CATALYSIS

Kikukawa, Kiyoshi,Kono, Kiyoshi,Nagira, Kazuhiko,Wada, Fumio,Matsuda, Tsutomu

, p. 2877 - 2878 (2007/10/02)

Palladium catalyzed reaction of arenediazonium salts, carbon monoxide and sodium carboxylates gave mixed anhydrides, wich in turn could be converted to aromatic acid anhydrides in good yields.

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