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871227-83-7

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871227-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 871227-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,2,2 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 871227-83:
(8*8)+(7*7)+(6*1)+(5*2)+(4*2)+(3*7)+(2*8)+(1*3)=177
177 % 10 = 7
So 871227-83-7 is a valid CAS Registry Number.

871227-83-7Upstream product

871227-83-7Downstream Products

871227-83-7Relevant articles and documents

3α-Acetoxy-6,6-dimethylbicyclo[3.1.1]heptane-2-spiro-1′- cyclopropane from nopylamine deamination

Abraham, Raymond J.,Jones-Parry, Richard,Giddings, Rodney M.,Guy, Jonathan,Whittaker, David

, p. 643 - 646 (2007/10/03)

Deamination of nopylamine hydrochloride with sodium nitrite in acetic acid yields nopyl chloride 8, nopyl acetate 1 (R = OAc), 2-(1-acetoxyethyl)-6,6-dimethylbicyclo[3.1.1]hept-2-ene 9 and 3α-acetoxy-6,6-dimethylbicyclo[3.1.1]heptane-2-spiro-1′-cyclopropane 12. The products are consistent with initial formation of a diazonium ion which reacts by nucleophilic attack, hydride shift or by shift of electrons of the double bond. The reaction is contrasted with the acetolysis of nopyl toluene-p-sulfonate, which yields 8,8-dimethyltricyclo[4.2.1.03,7]nonan-6-ol as the main product. The difference is suggested to result from the transition state being reached early (deamination) or late (toluene-p-sulfonate acetolysis) on the reaction coordinate.

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