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23784-83-0

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23784-83-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23784-83-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,8 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23784-83:
(7*2)+(6*3)+(5*7)+(4*8)+(3*4)+(2*8)+(1*3)=130
130 % 10 = 0
So 23784-83-0 is a valid CAS Registry Number.

23784-83-0Relevant articles and documents

Electron-Catalyzed Aminocarbonylation: Synthesis of α,β-Unsaturated Amides from Alkenyl Iodides, CO, and Amines

Picard, Baptiste,Fukuyama, Takahide,Bando, Takanobu,Hyodo, Mamoru,Ryu, Ilhyong

supporting information, p. 9505 - 9509 (2021/12/09)

Aminocarbonylation of alkenyl iodides with CO and amines proceeded under heating to produce α,β-unsaturated amides in good yields (23 examples, 71% average yield). This catalyst-free method exhibited good functional-group tolerance, and open a straightforward access to functionalized acrylamides, as illustrated by the synthesis of Ilepcimide. A hybrid radical/ionic mechanism involving chain electron transfer is proposed for this transformation.

Synthesis of Cinnamides via Amidation Reaction of Cinnamic Acids with Tetraalkylthiuram Disulfides Under Simple Condition

Lai, Miao,Wu, Zhiyong,Su, Fangyao,Yu, Yujian,Jing, Yanqiu,Kong, Jinmin,Wang, Zhenteng,Wang, Shuai,Zhao, Mingqin

, p. 198 - 208 (2020/01/22)

A facile and efficient methodology for the synthesis of cinnamides has been achieved under metal- and additive-free conditions. This method allows the efficient C–N cross-coupling of diverse cinnamic acids with tetraalkylthiuram disulfides through a simply mixing operation in 1,2-dichloroethane at 100 °C. The protocol provides a direct approach to cinnamides and is featured with readily available starting materials and broad substrate scope, which shows its practical synthetic value in organic synthesis.

AMIDATION METHOD AND ESTERIFICATION METHOD USING SULFONIC ACID HALIDE

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Paragraph 0038, (2017/01/17)

PROBLEM TO BE SOLVED: To provide a safe and economical method for rapidly synthesizing amides and esters in high yield. SOLUTION: There is provided a method for amidating an amine or a derivative thereof using a sulfonic acid halide, where a sulfonic acid halide is allowed to act as an activator on a carboxylic acid or a derivative thereof to synthesize an active ester, and the active ester is reacted with an amine or a derivative thereof as a nucleophile to amidate the amine or the derivative thereof to obtain a corresponding amide or a derivative thereof. In a similar manner, a sulfonic acid halide is allowed to act as an activator on a carboxylic acid or a derivative thereof to synthesize an active ester, and the active ester is reacted with an alcohol or a derivative thereof as a nucleophile to esterify the alcohol or the derivative thereof to obtain a corresponding ester or a derivative thereof. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2016,JPO&INPIT

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