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1309606-64-1

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1309606-64-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1309606-64-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,6,0 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1309606-64:
(9*1)+(8*3)+(7*0)+(6*9)+(5*6)+(4*0)+(3*6)+(2*6)+(1*4)=151
151 % 10 = 1
So 1309606-64-1 is a valid CAS Registry Number.

1309606-64-1Relevant articles and documents

Synthesis of 2,3-dihydro-4(1H)-quinolones and the corresponding 4(1H)-quinolones via low-temperature fries rearrangement of N-arylazetidin-2- ones

Lange, Jens,Bissember, Alex C.,Banwell, Martin G.,Cade, Ian A.

, p. 454 - 470 (2011)

N-Arylazetidin-2-ones of the general form 1, which are readily prepared by GoldbergBuchwald-type copper-catalyzed coupling of N-unsubstituted azetidin-2-ones with the relevant aryl halide or using Mitsunobu cyclization processes, undergo smooth Fries-rearrangement in triflic acid at 018°C to give the isomeric 2,3-dihydro-4(1H)-quinolones (2). Dehydrogenation of the latter compounds using 10% Pd on C in 1.0M aqueous sodium hydroxide/propan-2-ol mixtures at ca. 82°C provides the corresponding 4(1H)-quinolones (3).

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