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177202-64-1

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177202-64-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177202-64-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,2,0 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 177202-64:
(8*1)+(7*7)+(6*7)+(5*2)+(4*0)+(3*2)+(2*6)+(1*4)=131
131 % 10 = 1
So 177202-64-1 is a valid CAS Registry Number.

177202-64-1Downstream Products

177202-64-1Relevant articles and documents

Facile access to: N-formyl imide as an N-formylating agent for the direct synthesis of N-formamides, benzimidazoles and quinazolinones

Huang, Hsin-Yi,Liang, Chien-Fu,Lin, Xiu-Yi,Yen, Shih-Yao

supporting information, p. 5726 - 5733 (2020/08/21)

N-Formamide synthesis using N-formyl imide with primary and secondary amines with catalytic amounts of p-toluenesulfonic acid monohydrate (TsOH·H2O) is described. This reaction is performed in water without the use of surfactants. Moreover, N-formyl imide is efficiently synthesized using acylamidines with TsOH·H2O in water. In addition, N-formyl imide was successfully used as a carbonyl source in the synthesis of benzimidazole and quinazolinone derivatives. Notable features of N-formylation of amines by using N-formyl imide include operational simplicity, oxidant- A nd metal-free conditions, structurally diverse products, and easy applicability to gram-scale operation.

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