Cas 1153673-89-2,(5-bromo-4-methoxy-2-(methoxymethyloxy)phenyl)(phenyl)methyl acetate

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Check Digit Verification of cas no

The CAS Registry Mumber 1153673-89-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,3,6,7 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1153673-89:
(9*1)+(8*1)+(7*5)+(6*3)+(5*6)+(4*7)+(3*3)+(2*8)+(1*9)=162
162 % 10 = 2
So 1153673-89-2 is a valid CAS Registry Number.

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1153673-89-2Relevant academic research and scientific papers

Generation of ortho-quinone methides by p-TsOH on silica and their hetero-Diels-Alder reactions with styrenes

Batsomboon, Paratchata,Phakhodee, Wong,Ruchirawat, Somsak,Ploypradith, Poonsakdi

, p. 4009 - 4012 (2009)

(Chemical Equation Presented) 2-Arylchromans were readily prepared from the hetero-Diels-Alder reactions of styrenes with the ortho-quinone methides (o-QMs) which, in turn, were generated by treating the MOM-protected benzylacetate derivatives with p-TsOH immobilized on silica (PTS-Si) in toluene under mild conditions (0°C to rt). The corresponding chromans were obtained in moderate to excellent yields (42-97%) and in moderate to excellent diastereoselectivity (up to >99:1).

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