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19265-05-5

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19265-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19265-05-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,6 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19265-05:
(7*1)+(6*9)+(5*2)+(4*6)+(3*5)+(2*0)+(1*5)=115
115 % 10 = 5
So 19265-05-5 is a valid CAS Registry Number.

19265-05-5Downstream Products

19265-05-5Relevant articles and documents

A STUDY OF THE OXYANION EFFECT IN REACTIONS OF 2-METHYL-2-PROPEN-1-OL

El-Karim, Iman Aly Gad,Jones, Ray,Motherwell, William B.,Rzepa, Henry S.,Williams, David J.

, p. 1809 - 1824 (2007/10/02)

Optimum conditions for the self reaction of the potassium alkoxide of 2-methyl-2-propen-1-ol to give 3,5,5,-trimethyltetrahydropyran-2-ol (7) have been developed.Evidence is presented to demonstrate that the key carbon carbon bond forming step in this reaction formally involves an unusual type of Ene reaction between 2-methylpropenal and the allylic alkoxide anion in which stepwise or highly asynchronous hydride transfer precedes carbon carbon bond formation.Under different reactions conditions the condensation of 2-methylpropenal with the potassium alkoxide of 2-methyl-2-propen-1-ol proceeds to give the bicyclic lactone, 6-endo-hydroxy-7-exo-(2-methyl allyloxymethyl)-3-oxa-1,5,7-trimethyl bicyclononan-2-one (11), the crystal structure of which is reported.

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