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1449116-83-9

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1449116-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1449116-83-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,9,1,1 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1449116-83:
(9*1)+(8*4)+(7*4)+(6*9)+(5*1)+(4*1)+(3*6)+(2*8)+(1*3)=169
169 % 10 = 9
So 1449116-83-9 is a valid CAS Registry Number.

1449116-83-9Downstream Products

1449116-83-9Relevant articles and documents

Synthesis of Dichlorocyanomethyl-Functionalized Oxindoles by Cascade Reactions Initiated by Copper(I)-Catalytically Generated Dichlorocyanomethyl Radical

Che, Fengrui,Hou, Zhichen,Ma, Chaopeng,Wang, Maorong,Yu, Chunzheng,Yu, Linhan,Zhang, Yuexia,Zhong, Jiangbin

, p. 5020 - 5025 (2020)

An efficient and convenient protocol for synthesis of dichlorocyanomethyl-functionalized oxindoles through the cascade reactions of dichlorocyanomethyl radical with N-arylacrylamides is reported. The electrophilic dichlorocyanomethyl radical, which is gen

Copper-Catalyzed Radical N-Demethylation of Amides Using N-Fluorobenzenesulfonimide as an Oxidant

Yi, Xuewen,Yi, Xuewen,Lei, Siyu,Liu, Wangsheng,Che, Fengrui,Yu, Chunzheng,Liu, Xuesong,Wang, Zonghua,Zhou, Xin,Zhang, Yuexia

supporting information, p. 4583 - 4587 (2020/05/05)

An unprecedented N-demethylation of N-methyl amides has been developed by use of N-fluorobenzenesulfonimide as an oxidant with the aid of a copper catalyst. The conversion of amides to carbinolamines involves successive single-electron transfer, hydrogen-atom transfer, and hydrolysis, and is accompanied by formation of N-(phenylsulfonyl)benzenesulfonamide. Carbinolamines spontaneously decompose to N-demethylated amides and formaldehyde, because of their inherent instability.

Synthesis of oxindoles via Cu-mediated reactions between N-phenylacrylamides and ethyl 2-bromo-2-methylpropionate

Liu, Da,Zhuang, Shaobo,Chen, Xiang,Yu, Lin,Yu, Yongqi,Hu, Liang,Tan, Ze

, p. 612 - 616 (2018/01/18)

A novel way of synthesizing alkylated oxindoles via Cu-mediated atom transfer radical addition reaction between N-phenylacrylamides and ethyl 2-bromo-2-methylpropionate has been described. It was found that the use of N,N,N′,N′-1,1,2,2,-tetramethylethylenediamine as ligand was important for achieving good yields. Additionally, the use of DMSO as solvent and running the reaction at 130 °C were also crucial. In some cases, the product can be further brominated when the reaction temperature was raised to 150 °C.

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