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170288-29-6

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170288-29-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170288-29-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,2,8 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 170288-29:
(8*1)+(7*7)+(6*0)+(5*2)+(4*8)+(3*8)+(2*2)+(1*9)=136
136 % 10 = 6
So 170288-29-6 is a valid CAS Registry Number.

170288-29-6Relevant articles and documents

HCl-mediated transamidation of unactivated formamides using aromatic amines in aqueous media

Dhawan, Sanjeev,Girase, Pankaj Sanjay,Kumar, Vishal,Karpoormath, Rajshekhar

, p. 3729 - 3739 (2021/10/14)

We report transamidation protocol to synthesize a range of secondary and tertiary amides from weakly nucleophilic aromatic and hetero-aryl amines with low reactive formamide derivatives, utilizing hydrochloric acid as catalyst. This current acid mediated strategy is beneficial because it eliminates the need for a metal catalyst, promoter or additives in the reaction, simplifies isolation and purification. Notably, this approach conventionally used to synthesize molecules on gram scales with excellent yields and a high tolerance for functional groups.

Direct: N -formylation of nitroarenes with CO2

Shen, Ni,Zhai, Shi-Jing,Cheung, Chi Wai,Ma, Jun-An

supporting information, p. 9620 - 9623 (2020/09/03)

Herein we describe a straightforward N-formylation of nitroarenes with CO2 to access N-aryl formamides exclusively in the presence of iron and hydrosilane as additives. This protocol showcases a good tolerance of a wide range of nitroarenes and nitroheteroarenes.

Radical perfluoroalkylation - Easy access to 2-perfluoroalkylindol-3-imines-via electron catalysis

Leifert, Dirk,Artiukhin, Denis G.,Neugebauer, Johannes,Galstyan, Anzhela,Strassert, Cristian Alejandro,Studer, Armido

supporting information, p. 5997 - 6000 (2016/05/24)

Arylisonitriles (2 equivalents) react with alkyl and perfluoroalkyl radicals to form 2-alkylated indole-3-imines via two sequential additions to the isonitrile moiety followed by homolytic aromatic substitution. The three component reaction comprises three C-C bond formations. The endocyclic imine functionality in the products is more reactive in follow up chemistry and hydrolysis of the exocyclic imine leads to 3-oxindoles that show fluorescence properties.

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