2748-21-2 Usage
General Description
1H-Pyrazol-3-ol, 4,5-dihydro-1-phenyl-, acetate (ester) is a chemical compound that belongs to the class of pyrazole compounds. It is also known as 4,5-dihydro-1-phenyl-1H-pyrazol-3-ol acetate. 1H-Pyrazol-3-ol, 4,5-dihydro-1-phenyl-, acetate (ester) is an ester, which means it is formed through the reaction of an acid and alcohol. It is commonly used in the pharmaceutical industry as an intermediate in the synthesis of various drugs. Additionally, it has potential applications in organic synthesis and as a building block for the production of other chemical compounds. 1H-Pyrazol-3-ol, 4,5-dihydro-1-phenyl-, acetate (ester) is important in the field of chemistry and drug development due to its unique structure and properties.
Check Digit Verification of cas no
The CAS Registry Mumber 2748-21-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,4 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2748-21:
(6*2)+(5*7)+(4*4)+(3*8)+(2*2)+(1*1)=92
92 % 10 = 2
So 2748-21-2 is a valid CAS Registry Number.
2748-21-2Relevant articles and documents
Acylation of 1-arylpyrazolidin-3-ones
Golubeva,Vorozhtsov,Sviridova
, p. 552 - 556 (2000)
Acylation of 1-arylpyrazolidin-3-ones using aromatic acid anhydrides and chlorides in the presence of base occurs principally at the oxygen atom to give 1-aryl-3-acyloxy-2-pyrazolines, subsequent heating or microwave irradiation of which leads to the corresponding N-acylpyrazolidin-3-ones. The action of aliphatic acid anhydrides and chlorides on 1-arylpyrazolidin-3-ones gives predominantly the N-acylpyrazolidin-3-ones.
