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84049-84-3

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84049-84-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84049-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,4 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 84049-84:
(7*8)+(6*4)+(5*0)+(4*4)+(3*9)+(2*8)+(1*4)=143
143 % 10 = 3
So 84049-84-3 is a valid CAS Registry Number.

84049-84-3Downstream Products

84049-84-3Relevant articles and documents

Synthesis of Bis(aryloxyethyl) Vinyl Ethers via Phase-Transfer-Catalyzed Nucleophilic Displacement on 2-Chloroethyl Vinyl Ether

Gallucci, R.R.,Going, R.C.

, p. 342 - 346 (2007/10/02)

Bis(aryloxyethyl) vinyl ethers can be prepared in high yield by using sodium hydroxide, bis(phenols), and 2-chloroethyl vinyl ether (CEVE) with a tetraalkylammonium salt phase-transfer catalyst.The displacement reaction of the bis(phenol) dianion proceeds in high yield only if both excess CEVE and base are employed.Nucleophilic displacement is considerably faster than elimination reactions involving solvent or catalyst.Small amounts of water have little effect on the reaction.The synthesis has been extended to the preparation of related monoaryloxyethyl vinyl ethers.

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