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138883-38-2

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138883-38-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138883-38-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,8 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138883-38:
(8*1)+(7*3)+(6*8)+(5*8)+(4*8)+(3*3)+(2*3)+(1*8)=172
172 % 10 = 2
So 138883-38-2 is a valid CAS Registry Number.

138883-38-2Relevant articles and documents

Alkylation of Rink's amide linker on polystyrene resin: A reductive amination approach to modified amine-linkers for the solid phase synthesis of N-substituted amide derivatives

Brown, Edward G.,Nuss, John M.

, p. 8457 - 8460 (1997)

Reductive amination of aldehydes and ketones using sodium cyanoborohydride and Rink's 4-(2',4'-dimethoxyphenyl-aminomethyl)-phenoxymethyl-linked polystyrene resin [Rink's amine linker on copoly-(styrene-1%-divinylbenzene)]1 2 affords high yields of linker-bound, N-alkyl amines with excellent chemical selectivity. Subsequent coupling with acid derivatives gave derivatized N-substituted amides in excellent yields after cleavage from the solid-support.

UV-Light-Induced N-Acylation of Amines with α-Diketones

Xu, Zhihui,Yang, Tianbao,Tang, Niu,Ou, Yifeng,Yin, Shuang-Feng,Kambe, Nobuaki,Qiu, Renhua

supporting information, p. 5329 - 5333 (2021/07/21)

Herein, we develop a mild method for N-acylation of primary and secondary amines with α-diketones induced by ultraviolet (UV) light. Forty-six examples with various functional groups are explored at room temperature with irradiation by three 26 W UV lamps (350-380 nm). The yield reaches 97%. The gram scale experiment product yield is 76%. Moreover, this system can be applied to the synthesis of several amino acid derivatives. Mechanistic studies show that benzoin is generated in situ from benzil under UV irradiation.

A convenient synthesis of 2-alkyl-3-aryl-2,3-dihydro-1H-isoindol-1-ones by the reaction of N-alkyl-N-[(2-bromophenyl)methyl]benzamides with butyllithium

Kobayashi, Kazuhiro,Chikazawa, Yuuki

, p. 5100 - 5105 (2016/07/25)

An unprecedented and convenient synthetic approach to 2,3-dihydro-1H-isoindol-1-one (isoindolinone) derivatives has been developed. The key and final step of the method is the reaction of N-alkyl-N-(o-bromobenzyl)benzamides with butyllithium in THF at ?78

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