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diethyl (Z)-1-benzylidene-3-(5-bromo-1H-indol-1-yl)-1H-indene-2,2(3H)-dicarboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1028981-66-9

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1028981-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1028981-66-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,8,9,8 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1028981-66:
(9*1)+(8*0)+(7*2)+(6*8)+(5*9)+(4*8)+(3*1)+(2*6)+(1*6)=169
169 % 10 = 9
So 1028981-66-9 is a valid CAS Registry Number.

1028981-66-9Downstream Products

1028981-66-9Relevant academic research and scientific papers

Sc(OTf)3-catalyzed or t-BuOK promoted tandem reaction of 2-(2-(alkynyl)benzylidene)malonate with indole

Gao, Ke,Wu, Jie

supporting information; experimental part, p. 2251 - 2254 (2009/05/26)

(Chemical Equation Presented) Tandem reaction of 2-(2-(alkynyl)benzylidene) malonate with indole was investigated. (Z)-1-Benzylidene-3-(1H-indol-1-yl)-1H- indene-2,2(3H)-dicarboxylate was generated in the presence of t-BuOK at room temperature; whereas 3-((1H-indol-3-yl)(2-(alkynyl)aryl)methyl)-1H-indole was obtained when Sc(OTf)3 was utilized as catalyst at 50°C.

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