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344-41-2

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344-41-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 344-41-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,4 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 344-41:
(5*3)+(4*4)+(3*4)+(2*4)+(1*1)=52
52 % 10 = 2
So 344-41-2 is a valid CAS Registry Number.

344-41-2Downstream Products

344-41-2Relevant articles and documents

Chemoselective Suzuki–Miyaura Cross-Coupling via Kinetic Transmetallation

Fyfe, James W. B.,Fazakerley, Neal J.,Watson, Allan J. B.

, p. 1249 - 1253 (2017)

Chemoselective Suzuki–Miyaura cross-coupling generally requires a designed deactivation of one nucleophile towards transmetallation. Here we show that boronic acids can be chemoselectively reacted in the presence of ostensibly equivalently reactive boronic acid pinacol (BPin) esters by kinetic discrimination during transmetallation. Simultaneous electrophile control allows sequential chemoselective cross-couplings in a single operation in the absence of protecting groups.

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