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377726-66-4

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377726-66-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 377726-66-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,7,7,2 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 377726-66:
(8*3)+(7*7)+(6*7)+(5*7)+(4*2)+(3*6)+(2*6)+(1*6)=194
194 % 10 = 4
So 377726-66-4 is a valid CAS Registry Number.

377726-66-4Relevant articles and documents

Hydrogenation of Secondary Amides using Phosphane Oxide and Frustrated Lewis Pair Catalysis

K?ring, Laura,Sitte, Nikolai A.,Bursch, Markus,Grimme, Stefan,Paradies, Jan

, p. 14179 - 14183 (2021)

The metal-free catalytic hydrogenation of secondary carboxylic acid amides is developed. The reduction is realized by two new catalytic reactions. First, the amide is converted into the imidoyl chloride by triphosgene (CO(OCCl3)2) using novel phosphorus(V) catalysts. Second, the in situ generated imidoyl chlorides are hydrogenated in high yields by an FLP-catalyst. Mechanistic and quantum mechanical calculations support an autoinduced catalytic cycle for the hydrogenation with chloride acting as unusual Lewis base for FLP-mediated H2-activation.

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