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55245-39-1

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55245-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55245-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,4 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55245-39:
(7*5)+(6*5)+(5*2)+(4*4)+(3*5)+(2*3)+(1*9)=121
121 % 10 = 1
So 55245-39-1 is a valid CAS Registry Number.

55245-39-1Downstream Products

55245-39-1Relevant articles and documents

Ir-Catalyzed C-H Amidation Using Carbamoyl Azides for the Syntheses of Unsymmetrical Ureas

Yoo, Kwangho,Lee, Jooyeon,Park, Myung Hwan,Kim, Youngjo,Kim, Hyun Jin,Kim, Min

, p. 6233 - 6241 (2020/05/22)

An iridium-catalyzed C-H amidation for the syntheses of unsymmetrical urea was developed using carbamoyl azides (R(R′)N-C(O)-N3) as the nitrogen source. A combination of iridium and silver gave an active catalyst for C-N bond formation. A variety of urea derivatives were synthesized using carbamoyl azides with only dinitrogen byproducts. Finally, the use of the transient directing group strategy with carbamoyl azides extended the substrate scope of the catalytic C-H amidation to yield aldehyde-containing unsymmetrical ureas.

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