134209-76-0 Usage
General Description
Methyl 2-Methyl-4-oxocyclohex-2-enecarboxylate is a chemical compound with the molecular formula C9H12O3. It is an ester that is commonly used in the synthesis of various organic compounds and pharmaceuticals. The compound is a clear, colorless liquid with a fruity odor, and it is highly flammable. Methyl 2-Methyl-4-oxocyclohex-2-enecarboxylate is known for its role as an intermediate in the production of fragrances, flavors, and other chemical products. It is important to handle this compound with caution due to its flammability and potential health hazards.
Check Digit Verification of cas no
The CAS Registry Mumber 134209-76-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,0 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 134209-76:
(8*1)+(7*3)+(6*4)+(5*2)+(4*0)+(3*9)+(2*7)+(1*6)=110
110 % 10 = 0
So 134209-76-0 is a valid CAS Registry Number.
134209-76-0Relevant articles and documents
A New Annulation Reagent, 2-Oxo-3-alkenylphosphonates. Reactions with Carbonyl-Stabilized Carboanions or Silyl Enol Ethers Leading to Cyclohexanones
Wada, Eiji,Funakoshi, Junji,Kanemasa, Shuji
, p. 2456 - 2464 (2007/10/02)
The reactions of 2-oxo-3-alkenylphosphonates with carbonyl-stabilized carbanions directly lead to 2-cyclohexen-1-ones through a sequence of Michael reaction and intramolecular Horner-Emmons olefination.On the other hand, the Lewis acid-mediated reactions with silyl enol ethers produce 1,5-diketones as Michael adducts, which then undergo cyclization on treatment with sodium hydride or triethylamine/zinc (II) bromide to afford 2-cyclohexen-1-ones or 2-phosphinyl-2-cyclohexen-1-ones, respectively.
