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1260236-31-4

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1260236-31-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260236-31-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,2,3 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1260236-31:
(9*1)+(8*2)+(7*6)+(6*0)+(5*2)+(4*3)+(3*6)+(2*3)+(1*1)=114
114 % 10 = 4
So 1260236-31-4 is a valid CAS Registry Number.

1260236-31-4Relevant articles and documents

Synthesis of Functionalized Vinylsilanes via Metal-Free Dehydrogenative Silylation of Enamides

Chang, Xi-Hao,Wang, Zi-Lu,Zhao, Meng,Yang, Chao,Li, Jie-Jun,Ma, Wei-Wei,Xu, Yun-He

supporting information, p. 1326 - 1330 (2020/02/13)

A novel method of metal-free dehydrogenative silylation of enamides has been developed. The desired functionalized vinylsilane products were obtained in moderate to good yield and with high stereoselectivities. This protocol displays good tolerance of various functionalities. Furthermore, the high chemoselectivity of this reaction enables us to introduce different unsaturated C-C moieties to the products. The ease of further derivatization of the products to other useful compounds also demonstrates the highly synthetic utility of the current methodology.

Copper-promoted oxidative coupling of enamides and alkynes for the synthesis of substituted pyrroles

Zhao, Mi-Na,Ren, Zhi-Hui,Wang, Yao-Yu,Guan, Zheng-Hui

supporting information, p. 1839 - 1842 (2014/03/21)

An efficient copper-promoted oxidative coupling of enamides with alkynes has been developed for the synthesis of substituted pyrroles. The reaction proceeded through C-H and N-H bond functionalization of enamides under mild conditions.

Coupling of enamides with alkynes or arynes for synthesis of substituted pyridines and isoquinolines via amide activation

Zhao, Mi-Na,Ren, Zhi-Hui,Wang, Yao-Yu,Guan, Zheng-Hui

supporting information; experimental part, p. 8105 - 8107 (2012/09/07)

A novel and general procedure for Cu-catalyzed coupling of enamides with alkynes to synthesize substituted pyridines was developed. The chemistry was allowed to extend to the synthesis of substituted isoquinolines by coupling of enamides with arynes under transition-metal-free conditions.

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