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2-Butanone, 3,4-dibromo-4-(4-methoxyphenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19739-09-4

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19739-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19739-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,3 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19739-09:
(7*1)+(6*9)+(5*7)+(4*3)+(3*9)+(2*0)+(1*9)=144
144 % 10 = 4
So 19739-09-4 is a valid CAS Registry Number.

19739-09-4Relevant academic research and scientific papers

Bromination of alkenes and alkynes with (bromodimethyl)sulfonium bromide

Das, Biswanath,Srinivas, Yallamalla,Sudhakar, Chittaluri,Ravikanth, Bommena

, p. 188 - 190 (2008)

Alkenes and alkynes were brominated efficiently in high yields with (bromodimethyl)sulfonium bromide in acetonitrile at room temperature. Alkenes produced the corresponding trans-dibromo compounds while alkynes (except phenylacetylene) afforded both the trans-dibromo products (major) and the tetrabromo derivatives (minor). However, phenylacetylene furnished solely the tetrabromo compound.

Efficient bromination of alkenes and alkynes using potassium bromide and diacetoxy iodobenzene

Das, Biswanath,Srinivas, Yallamalla,Sudhakar, Chittaluri,Damodar, Kongara,Narender, Ravirala

experimental part, p. 220 - 227 (2009/04/07)

Bromination of alkenes and alkynes has efficiently been carried out at room temperature in short reaction times using KBr and diacetoxy iodobenzene in CH2Cl2-H2O (1:1) to prepare the corresponding trans-dibromo compounds in excellent yields. Copyright Taylor & Francis Group, LLC.

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