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142592-73-2

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142592-73-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142592-73-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,5,9 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142592-73:
(8*1)+(7*4)+(6*2)+(5*5)+(4*9)+(3*2)+(2*7)+(1*3)=132
132 % 10 = 2
So 142592-73-2 is a valid CAS Registry Number.

142592-73-2Relevant articles and documents

Intramolecular thermal stepwise [2 + 2] cycloadditions: Investigation of a stereoselective synthesis of [n.2.0]-bicyclolactones

Throup, Adam,Patterson, Laurence H.,Sheldrake, Helen M.

supporting information, p. 9554 - 9559 (2016/10/22)

Fused cyclobutanes are found in a range of natural products and formation of these motifs in a straightforward and easy manner represents an interesting synthetic challenge. To this end we investigated an intramolecular variant of the thermal enamine [2 + 2] cyclisation, developing a diastereoselective intramolecular enamine [2 + 2] cyclisation furnishing δ lactone and lactam fused cyclobutenes in good yield and excellent diastereoselectivity.

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