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77585-87-6

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77585-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77585-87-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,8 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77585-87:
(7*7)+(6*7)+(5*5)+(4*8)+(3*5)+(2*8)+(1*7)=186
186 % 10 = 6
So 77585-87-6 is a valid CAS Registry Number.
InChI:InChI=1/C14H13BrN2O/c1-17(13-5-3-2-4-6-13)14(18)16-12-9-7-11(15)8-10-12/h2-10H,1H3,(H,16,18)

77585-87-6Relevant articles and documents

2,2,2-Trifluroenthanol promoted synthesis of unsymmetrical ureas from dioxazolones and amines via tandem lossen rearrangement/condensation process

Li, Jian,He, Wang,Lei, Pan,Song, Jiacheng,Huo, Jiyou,Wei, Hongbo,Bai, Hongjin,Xie, Weiqing

supporting information, p. 3590 - 3600 (2021/10/07)

A 2,2,2-trifluroenthanol (TFE) promoted synthesis of unsymmetric ureas was described. This approach enabled the construction of a variety of ureas from the readily prepared and easy-to-handle dioxazolones and amines via tandem Lossen rearrangement/condensation process. The reaction featured mild conditions for the urea synthesis under metal-free conditions, which was successively applied in the scale-up synthesis of herbicides Monuro and Isoproturon.

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