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5-ethylidene-3-(α-hydroxy-4-methoxybenzyl)-4-methoxyfuran-2(5H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

104971-20-2

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104971-20-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104971-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,7 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 104971-20:
(8*1)+(7*0)+(6*4)+(5*9)+(4*7)+(3*1)+(2*2)+(1*0)=112
112 % 10 = 2
So 104971-20-2 is a valid CAS Registry Number.

104971-20-2Downstream Products

104971-20-2Relevant academic research and scientific papers

Directed Metallations of 4-Ethylidenetetronic Acid O-Methyl Ether and its Derivatives as a Synthetic Entry to Natural 4-Oxyfuran-2-ones

Buck, Judith,Clemo, Nicholas G.,Pattenden, Gerald

, p. 2399 - 2406 (2007/10/02)

Lithium di-isopropylamide removes the C-2(α-)-protons from the O-methyl tetronates (11) and (20) in a regioselective manner leading to the corresponding novel anions e.g. (18).The vinyl anions then react with a range of electrophiles providing a preparati

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