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1-bromo-1-cyano-3-phenylbut-3-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81842-76-4

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81842-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81842-76-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,4 and 2 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81842-76:
(7*8)+(6*1)+(5*8)+(4*4)+(3*2)+(2*7)+(1*6)=144
144 % 10 = 4
So 81842-76-4 is a valid CAS Registry Number.

81842-76-4Upstream product

81842-76-4Downstream Products

81842-76-4Relevant academic research and scientific papers

Homolytic Displacements at Carbon. Part 8. Synthesis of 1-Cyano-2-(trichloroethyl)cyclopropanes from Allylcobaloximes via But-3-enylcobaloximes and 1-Bromo-1-cyanobut-3-enes

Bury, Adrian,Corker, Stephen T.,Johnson, Michael D.

, p. 645 - 652 (2007/10/02)

Several 1-cyano-2(trichloroethyl)cyclopropanes have been synthesised by a sequence of reactions involving homolytic displacement of cobaloxime(II) from allylcobaloxime(III) complexes by bromocyanomethyl radicals and homolytic displacement of cobaloxime(II) from but-3-enylcobaloxime(III) complexes by trichloromethyl radicals: the latter complexes being formed from the 1-bromo-1-cyanobut-3-enes formed in the reactions of the allylcobaloxime(III) complexes.In cases where the but-3-enylcobaloxime(III) complex could not be synthesised, alternative routes to 1-cyano-2-(trichloroethyl)cyclopropanes have been demonstrated, including the homolytic displacement of bromine atoms from 1-bromo-1-cyanobut-3-enes by trichloromethyl radicals.

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