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117712-89-7

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117712-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117712-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,1 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 117712-89:
(8*1)+(7*1)+(6*7)+(5*7)+(4*1)+(3*2)+(2*8)+(1*9)=127
127 % 10 = 7
So 117712-89-7 is a valid CAS Registry Number.

117712-89-7Downstream Products

117712-89-7Relevant articles and documents

Palladium-mediated cyclization of 1,5-hexadien-3-ols to 1-methyl-1,3-cyclopentadienes

Zair,Santelli-Rouvier,Santelli

, p. 3313 - 3324 (2007/10/02)

Treatment of 1,5-hexadien-3-ols in acetic acid by Pd(o) [Pd(PPh3)4] led to 1-methyl-1,3-cyclopentadienes. Cyclization is improved by the presence of catalytic amount of trifluoroacetic acid. Mechanism is discussed from the observed r

Importance of Structure of α,β-Ethylenic Ketones during Their Reductive Coupling Promoted by the TiCl4-Mg Reagent

Pons, Jean-Marc,Santelli, Maurice

, p. 877 - 884 (2007/10/02)

In most cases, the reductive coupling of α,β-ethylenic ketones by the TiCl4-Mg reagent leads to 1,3,5-trienes and bisallylic pinacols.Some α,β-enones of s-cis configuration, such as (+)-pulegone, show a particular reactivity: formation of dihydro ketones in the presence of tert-butyl alcohol and reductive alkylation with allylic halides or benzyl bromide.Results are accordance with a polymeric structure for the native low-valent titanium species, and in the case of some s-cis-enones, they can be explained by the intervention of a oxametallacyclopentene.

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