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118476-12-3

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118476-12-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118476-12-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,4,7 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 118476-12:
(8*1)+(7*1)+(6*8)+(5*4)+(4*7)+(3*6)+(2*1)+(1*2)=133
133 % 10 = 3
So 118476-12-3 is a valid CAS Registry Number.

118476-12-3Relevant articles and documents

Complex Annulations through Silver Carbenoid Intermediate: An Alternative Entry to Transformations of 1,2,3-Triazoles

Yang, Yuan,Yu, Jiang-Xi,Ouyang, Xuan-Hui,Li, Jin-Heng

, p. 3982 - 3985 (2017)

An alternative entry to transformations of N-sulfonyl-4-(2-(ethynyl)aryl)-1,2,3-triazoles with various generated in situ or external nucleophiles by means of silver catalysis for producing diverse functionalized isoquinolines is described. Mechanistically

A Synthetic Route to Chiral Benzo-Fused N-Heterocycles via Sequential Intramolecular Hydroamination and Asymmetric Hydrogenation of Anilino-Alkynes

Xu, Cong,Feng, Yu,Li, Faju,Han, Jiahong,He, Yan-Mei,Fan, Qing-Hua

supporting information, p. 3979 - 3990 (2019/11/14)

An efficient sequential intramolecular hydroamination/asymmetric hydrogenation reaction under catalysis of a single chiral ruthenium complex or a binary system consisting of achiral gold complex and chiral ruthenium complex has been reported. A diverse range of enantioenriched benzo-fused N-heterocycles, including 1,2,3,4-tetrahydroquinoline, indoline, and 2,3,4,5-tetrahydro-1H-benzo[b]azepine derivatives, were obtained from anilino-alkynes in high yields (up to 98%) with moderate to excellent enantioselectivities (up to 98% ee) under mild conditions. This protocol features good functional group tolerance and high atom economy. Furthermore, this catalytic protocol is applicable to gram-scale synthesis of a naturally occurring alkaloid, (-)-Angustureine.

Palladium-Catalyzed Construction of Tetracyclic Scaffolds via the 1,7-Enyne Carbocyclization/Iodophenol Dearomatization Cascade

Xia, Yu,Wang, Li-Jing,Wang, Jia,Chen, Si,Shen, Yi,Guo, Chun-Huan,Liang, Yong-Min

, p. 12386 - 12394 (2017/12/08)

An efficient palladium-catalyzed dearomatizing [2+2+1] carbocyclization of 1,7-enynes with iodophenols has been developed. A type of tetracyclic scaffold was built in this reaction, exhibiting a broad substrate scope with moderate to excellent yields. More importantly, this method provides a potential strategy for the synthesis of tetracyclic skeleton natural products.

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