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1178513-99-9

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1178513-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1178513-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,8,5,1 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1178513-99:
(9*1)+(8*1)+(7*7)+(6*8)+(5*5)+(4*1)+(3*3)+(2*9)+(1*9)=179
179 % 10 = 9
So 1178513-99-9 is a valid CAS Registry Number.

1178513-99-9Downstream Products

1178513-99-9Relevant articles and documents

RuII-catalyzed vinylative dearomatization of naphthols via a C(sp2)-H bond activation approach

Nan, Jiang,Zuo, Zhijun,Luo, Lei,Bai, Lu,Zheng, Huayu,Yuan, Yini,Liu, Jingjing,Luan, Xinjun,Wang, Yaoyu

, p. 17306 - 17309 (2013)

Intermolecular annulation reactions of 1-aryl-2-naphthols with internal alkynes proceed efficiently in the presence of a Ru catalyst and a Cu oxidant to generate spirocyclic compounds by sequential cleavage of the C(sp 2)-H bond, migratory insertion of the alkyne, and dearomatization of the naphthyl ring. Various spirocyclic molecules bearing an all-carbon quaternary stereocenter could be obtained by this novel method with good yields and excellent regioselectivity, and the current process tolerates a variety of synthetically important functional groups.

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