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29784-22-3

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29784-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 29784-22-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,7,8 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 29784-22:
(7*2)+(6*9)+(5*7)+(4*8)+(3*4)+(2*2)+(1*2)=153
153 % 10 = 3
So 29784-22-3 is a valid CAS Registry Number.

29784-22-3Relevant articles and documents

C-C Bond Cleavage Initiated Cascade Reaction of β-Enaminones: One-Pot Synthesis of 5-Hydroxy-1 H-pyrrol-2(5 H)-ones

Chen, Ting,Zheng, Xiujuan,Wang, Wenhua,Feng, Yadong,Wang, Yanyun,Shen, Jinhai

, p. 2917 - 2928 (2021)

An unprecedented C(CO)-C(Ar) bond cleavage of β-enaminones has been realized under mild and transition-metal-free conditions. The cascade transformation based on this C-C bond cleavage involves 1,3-O/C migration and aerobic hydroxylation and leads to various 5-hydroxy-1H-pyrrol-2(5H)-ones with broad functional group tolerance. The application of this methodology has been showcased by preparing 5-alkoxy-1H-pyrrol-2(5H)-one derivatives and a pyrrolo[2,1-a]isoquinolin-3-one derivative.

Novel microwave-assisted one-pot synthesis of isoxazoles by a three-component coupling-cycloaddition sequence

Willy, Benjamin,Rominger, Frank,Mueller, Thomas J. J.

, p. 293 - 303 (2008/12/22)

The consecutive Sonogashira coupling of acid chlorides with terminal alkynes, followed by 1,3-dipolar cycloaddition under dielectric heating of in situ generated nitrile oxides from hydroximinoyl chlorides furnishes isoxazoles in moderate to good yields i

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