99017-83-1 Usage
General Description
2-Furancarboxylic acid, tetrahydro-3-oxo-, methyl ester (9CI) is a chemical compound with the molecular formula C7H8O4. It is also known as 2-Methyltetrahydro-3-furanone and is commonly used as a flavoring agent in the food industry. It is a clear, colorless liquid with a sweet and caramel-like odor, and it is soluble in water. 2-Furancarboxylicacid,tetrahydro-3-oxo-,methylester(9CI) is also used as a solvent and intermediate in the production of pharmaceuticals and other organic compounds. It is important to handle this chemical with caution, as it may cause irritation to the skin, eyes, and respiratory system.
Check Digit Verification of cas no
The CAS Registry Mumber 99017-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,0,1 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99017-83:
(7*9)+(6*9)+(5*0)+(4*1)+(3*7)+(2*8)+(1*3)=161
161 % 10 = 1
So 99017-83-1 is a valid CAS Registry Number.
99017-83-1Relevant articles and documents
Intramolecular N-H, O-H, and S-H Insertion Reactions. Synthesis of Heterocycles from α-Diazo β-Keto Esters
Moyer, Mikel P.,Feldman, Paul L.,Rapoport, Henry
, p. 5223 - 5230 (2007/10/02)
Several aspects of the Rh2(OAc)4-catalyzed intramolecular N-H, O-H, and S-H insertion reactions have been studied.Examination of the effect of ring size revealed that four-, five- and six-membered nitrogen heterocycles can be efficiently prepared from the corresponding α-diazo β-keto ester precursors (9a-c), whereas competing C-H insertion prevented formation of the seven-membered heterocycle.Variations in solvent, temperature, and catalyst concentration were found to play an important role in determining the product distribution in the cyclization of the 6-carbamoyl 2-diazo 3-keto ester 9c.The intramolecular X-H insertion reaction has also been successful in the synthesis of oxygen (39) and sulfur (49) heterocycles as well as a heterocycle containing two (N, O) heteroatoms (34).
