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199192-13-7

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199192-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199192-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,9 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199192-13:
(8*1)+(7*9)+(6*9)+(5*1)+(4*9)+(3*2)+(2*1)+(1*3)=177
177 % 10 = 7
So 199192-13-7 is a valid CAS Registry Number.

199192-13-7Downstream Products

199192-13-7Relevant articles and documents

Bu3SnH mediated oxidative radical cyclisation onto imidazoles and pyrroles

Aldabbagh, Fawaz,Russell Bowman,Mann, Emma,Slawin, Alexandra M.Z.

, p. 8111 - 8128 (2007/10/03)

A new protocol using radical cyclisation has been developed for the synthesis of [1,2-c]-fused imidazoles and [1,2-a]-fused pyrroles. The intermediate nucleophilic N-alkyl radicals, generated using Bu3SnH from N- (ω-bromoalkyl) or N-[ω-(phenylselanyl)alkyl] imidazoles and pyrroles, undergo regio-selective radical cyclisalion onto the azole rings followed by oxidative re-aromatisation.

SYNTHESE D'ACETOACETALDEHYDES MONO- ET DI-SUBSTITUES PAR DES CHAINES FONCTIONNALISEES

Cartier, Dominique,Levy, Jean

, p. 5295 - 5304 (2007/10/02)

These synthons, which are useful in the synthesis of indole alkaloids, were prepared through alkylation of enone 4 and further ozonolysis, after eventual protection in the form of dioxolane derivatives.

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