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27503-90-8

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27503-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27503-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,5,0 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27503-90:
(7*2)+(6*7)+(5*5)+(4*0)+(3*3)+(2*9)+(1*0)=108
108 % 10 = 8
So 27503-90-8 is a valid CAS Registry Number.

27503-90-8Downstream Products

27503-90-8Relevant articles and documents

Anti-Markovnikov Hydroazidation of Alkenes by Visible-Light Photoredox Catalysis

Wang, Juan-Juan,Yu, Wei

, p. 3510 - 3514 (2019)

The anti-Markovnikov hydroazidation of alkenes has been accomplished under visible-light irradiation by using [Ir(dF(CF3)ppy)2(dtbbpy)]PF6 as the photocatalyst and trimethylsilyl azide as the azidating agent. The reactions were greatly facilitated by water, the beneficial effect of which can be attributed to its participation in the reaction as the hydrogen donor, as indicated by deuterium isotope experiments. The reactions proceed under solvent free conditions in the presence of water. 4-Dimethylaminopyridine also exhibited a beneficial effect on the reactions. The present method enabled hydroazidation of several types of unactivated alkenes with good yields and high regioselectivity.

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