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trans-1,4-bis(bromoethynyl)cyclohexa-2,5-diene-1,4-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

852992-25-7

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852992-25-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 852992-25-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,9,9 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 852992-25:
(8*8)+(7*5)+(6*2)+(5*9)+(4*9)+(3*2)+(2*2)+(1*5)=207
207 % 10 = 7
So 852992-25-7 is a valid CAS Registry Number.

852992-25-7Relevant academic research and scientific papers

Synthesis of 2,5-diethynyl substituted oxepins from trans-1,4- diethynylcyclohexa-2,5-diene-1,4-diols

Bandyopadhyay, Arkasish,Sankararaman, Sethuraman

, p. 3221 - 3224 (2005)

Reaction of trans-1,4-bis(trimethylsilylethynyl)cyclohexa-2,5-diene-1,4- diol with n-BuLi followed by methanesulfonyl chloride resulted in the formation of a dark red solid, which was identified as 2,5-bis(trimethylsilylethynyl) oxepin. Deprotection of the silyl groups resulted in the formation of 2,5-diethynyloxepin, a red, shock sensitive solid. Reaction of a differentially substituted cyclohexa-2,5-diene-1,4-diol gave a mixture of 2,5-diethynyl substituted oxepins.

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