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27398-50-1

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27398-50-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27398-50-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,3,9 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27398-50:
(7*2)+(6*7)+(5*3)+(4*9)+(3*8)+(2*5)+(1*0)=141
141 % 10 = 1
So 27398-50-1 is a valid CAS Registry Number.

27398-50-1Relevant articles and documents

Efficient N-arylation of 4-chloroquinazolines en route to novel 4-anilinoquinazolines as potential anticancer agents

Clososki, Giuliano C.,Costa-Lotufo, Leticia V.,Dos Santos, Thiago,Furtado, Luciana C.,Murie, Valter E.,Nishimura, Rodolfo H. V.

, p. 2968 - 2975 (2022/01/12)

Microwave-mediated N-arylation of 4-chloroquinazolines in THF/H2O rapidly and efficiently afforded a library of novel 6-halo-2- phenyl-substituted 4-anilinoquinazolines. The methodology was compatible with numerous ortho-, meta-, and para-substituted N-methylanilines as well as substituted anilines and furnished the corresponding 4-anilinoquinazolines in good yields. Preliminary screening of the synthesized compounds against tumor cells (HCT-116 and T98G) showed promising antiproliferative properties.

Metal-free catalyst for the visible-light-induced photocatalytic synthesis of quinazolinones

Wang, Rongzhou,Liu, Shiyuan,Li, Longfei,Song, Ao,Yu, Shengsheng,Zhuo, Shuping,Xing, Ling-Bao

, (2021/07/07)

In the present work, we have developed a novel and environmentally friendly method for the synthesis of quinazolinones using fluorescein as a photocatalyst via a condensation reaction of o-aminobenzamides and aldehydes under visible light irradiation. In this protocol, neither toxic oxidants nor transition-metal catalysts were needed, and a series of quinazolinones could be obtained in high efficiencies. In addition, this reaction can be extended to gram levels and has a large potential of wide application in future industrialization.

Three-Component Couplings among Heteroarenes, Difluorocyclopropenes, and Water via C-H Activation

Liu, Xuexin,Chen, Jian,Yang, Chunyan,Wu, Zhouping,Li, Zhiyang,Shi, Yuesen,Huang, Tianle,Yang, Zhongzhen,Wu, Yong

supporting information, p. 6831 - 6835 (2021/09/08)

Three-component couplings have been realized for efficiently constructing various nitrogen-containing skeletons via C-H activation, where difluorocyclopropenes have been first identified as coupling partners. Many substrates including sp2 and sp3 C-H substrates were well tolerated, furnishing the corresponding products in good yields. Furthermore, a catalyst-dependent reaction was also developed, enabling divergent construction of two different frameworks. The application value of these reactions was demonstrated in gram-scale experiments with as little as 1 mol % catalyst.

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